Skip to content
PLEASE NOTE: You may experience errors on our site when using Internet Explorer. Please consider updating your browser, or download Google Chrome.
Happy Mouth (#14989)

Happy Mouth Mullen Mouth King Dee

Our Price: List Price:
Our Price: Our Price: Sale Price: : $ (%) :
Member Price:
(Members save 5% at SmartPak)
:
SmartPerks Price:
(Because you have supplements on AutoShip, you save an extra 10% on this and all other SmartPak tack & apparel items!)
Your Price:
(You save 5% as a member of . And, because you have supplements on AutoShip, you save an extra 10% on this and all other SmartPak tack & apparel items!)
SmartPerks Price:
(Because you have supplements on AutoShip, you can save an extra 10% on this and all other SmartPak tack & apparel items! Enter promo code PERKS at checkout.)
Your Price:
(You save 5% as a member of . Because you have supplements on AutoShip, you can save an extra 10% on this and all other SmartPak tack & apparel items! Enter promo code PERKS at checkout.)
SmartPerks
Free Shipping (Details)
Ships free with a qualifying item
Free Ground Shipping
Free Return Shipping

As riders and online shoppers, we know it can be tough to buy a new bridle or pair of boots without trying them on. That's why we moved the fitting room to your living room (or barn)! From breeches to blankets, if you or your horse can try it on, you can return it, free! Just request a return with a FREE SmartPak return label from your Order History within 60 days of the purchase date. And of course, please make sure the item is in like-new condition with original packaging (we said 'fitting room', not 'war room'!).

Customize your program:
:

FINAL SALE - This item cannot be returned or exchanged.

FINAL SALE - This item cannot be returned or exchanged.

- +
Required (Optional)
on every AutoShip order (Details)
You'll love our AutoShip because it's:
  • Focused on happy riders - never worry about running out!
  • Easy to snooze or cancel online, anytime
  • Totally flexible - edit your order as often as you'd like
PLUS! You'll save % on every shipment if you order this product on AutoShip
You'll love our AutoShip because it's:
  • Focused on healthy s, because consistency is key
  • Easy to snooze or cancel online, anytime
  • Totally flexible - edit your order as often as you'd like
  • Your VIP pass to FREE SmartPerks benefits
PLUS! You'll save % on every shipment if you order this product on AutoShip
Price for one-time shipment:
AutoShip price: Price per shipment:
AutoShip Savings applied
Start date: Customize your program for estimated start date. View estimated schedule
:
Zone Map
Begin with the zone for the state you are in. Dates shown on the map indicate suggested start and end dates for Fly Stoppers™ shipments. You may want to shift a zone if your elevation or microclimate is unusual, or if you fall on the border between two zones. You can start anytime during the fly season. Choose "Year Round" for climates that have flies all year, and start now.
Program Type Shipment/Application Frequency
Regular Programs: Ships every 4 weeks. For low to average fly levels, frequent manure management and few neighbors.
Premium Programs: Ships every 3 weeks. For high fly levels or weekly manure management or nearby livestock.
of max 255 characters used
Just left - order today! Don't wait - just a few left!
These are for:
Sign in to choose an existing
Order within and have it by Shipping to
Add these items to your cart to get your estimated arrival date. Shipping to
Guaranteed Holiday Delivery:
Standard product delivery is but may take longer due to holiday volume.
All customized items are personalized in our Plymouth, MA facility, and it looks like this item is currently out of stock in that location.
Please call 1-800-461-8898 to order this product.
Lowest Price Guaranteed
We're bringing you this product at the lowest price allowed by the manufacturer so you won't find it cheaper anywhere else. This also means we can't apply any further discounts or promotions.

SmartPerks Putting your horse's supplements on AutoShip helps you take great care of your horse, so we take great care of you with SmartPerks! When you order your horse's supplements on AutoShip, you're automatically* eligible for our FREE SmartPerks benefits, including:

  • Free shipping every day
  • 10% off all SmartPak brand tack, apparel, and gear

Learn more about SmartPerks

*At least one individual AutoShip supplement or horse's SmartPaks must be over $40. Some exclusions apply. Visit SmartPak.com/SmartPerks or call 1-800-461-8898 for details.

Overview

Why We Love This

A favorite with top trainers, Happy Mouth bits are covered with a soft, flexible, yet extremely durable, apple-scented plastic which encourages acceptance and softness. The Happy Mouth Mullen Mouth King Dee has an inner core of twisted wire for more flexibility. All cheeks are stainless steel. 5", 5 1/2", 5 3/4". 20mm thickness.
Key Specifications
  • Material: Stainless steel
  • Mouthpiece Style: Mullen
  • Cheek Style: Dee ring
  • STILL HAVE QUESTIONS? SEE Q&A
  • 100% Happiness Guarantee
    100% Happiness Guarantee
    At SmartPak, your happiness is at the core of everything we do. We put our products to the test in our barns and on our horses, and back every order with our world-class customer service so that you can shop with confidence. As part of our Happiness Guarantee, we promise you:
    • Expert advice from riders
    • Free shipping every day
    • Free return shipping on sized items
    • Hassle-free returns up to 365 days after purchase
Ingredients
(Maintenance Dose = )
Ingredient Amount
Sizing
Available in  5", 5 1/2", 5 3/4"

20mm
What Customers Say:
Specifications
Material Stainless steel
Mouthpiece Style Mullen
Cheek Style Dee ring
Thickness 20mm
Customizable No
Reviews
Happy Mouth Mullen Mouth King Dee is rated 4.5 out of 5 by 30.
Rated 5 out of 5 by from Exactly as described Soft and gentle for my newly broke young horse. Good price and available sizing.
Date published: 2021-04-11
Rated 5 out of 5 by from Great mild bit Purchased this for my very sensitive OTTB and he accepts this but much better and seems happier with it than a metal bit
Date published: 2020-07-31
Rated 5 out of 5 by from My horse loves it! Just tried a Happy Mouth bit for the first time and my super fussy thoroughbred loves it!
Date published: 2019-10-03
Rated 5 out of 5 by from Wasn't sure my horse would like this BUT he is very happy with it. He had been chewing his joint Happy Mouth Bit, so I tried this Mullen one and he is content and does try to chew it. The softer Happy Mount is easily chewed and produces sharp plastic pieces. This problem is solved with the Mullen bit.
Date published: 2018-05-20
Rated 3 out of 5 by from Diameter is significantly larger than I expected I am looking for a soft bit for my older mare. I began with a rubber snaffle when I bought her as a rescue ten years ago and progressed to an expensive French bit when we were doing dressage. At this point in our lives, we simply want to walk on trails and look at the mountains. I put this plastic Mullen bit on her bridle and used it, only to find that it extends beyond the rings, which looks strange, and that it's really too thick for her mouth...so no returning. Not sure where to go from here.
Date published: 2017-10-27
Rated 4 out of 5 by from Great Bit but not the one. :( This bit gives a steady gentle pressure while the Dee rings don't pinch and help with lateral steering. It is very gentle but I needed something even softer. I will use this bit later when my horse adjusts.
Date published: 2016-09-14
Rated 4 out of 5 by from Quality Bit I purchased this bit because my Mares mouth is on the larger side. This was one of the few bits with size options. She's also transitioning from a hackamore to a bit, so I wanted something a little mild. I was impressed with the feel of the bit in my hand. Very nice quality steel, and it really smells of apple. My mare took to it nicely, and overall I'm satisfied with it. I only didn't rate it higher because it's unclear as to what material the bit is made of. I prefer more transparency in product ingredients for any safety concerns I may have.
Date published: 2016-09-04
Rated 5 out of 5 by from Love everything about the bridle and bit I recentl Nice leather. Great fit and looks awesome on my handsome boy
Date published: 2015-11-17
Rated 2 out of 5 by from Not what I was lookin for I had hoped this bit would be softer more flexible plastic coating like the nathes but I was not. Very hard, rigid, and not what my horse was liking. The coating extends up the sides of the D a bit which I felt like distracted from the overall impression. I liked the King Dee style better for aesthetics but this would keep from pinching corners. Just not what I was looking for and thanks to smartpak a free return.
Date published: 2015-06-25
Rated 5 out of 5 by from Best bit ever I used this bit on all my jumper horses - and they are very energetic and sometimes very strong. That said, the bit always works great and the all love it..
Date published: 2015-06-06
  • y_2021, m_12, d_3, h_19
  • bvseo_bulk, prod_bvrr, vn_bulk_3.0.20
  • cp_1, bvpage1
  • co_hasreviews, tv_4, tr_26
  • loc_en_US, sid_4989, prod, sort_[SortEntry(order=SUBMISSION_TIME, direction=DESCENDING)]
  • clientName_smartpak
  • bvseo_sdk, net_sdk, 3.2.0.0
  • CLOUD, getContent, 47ms
  • REVIEWS, PRODUCT
Q & A

Recently Viewed

Customers Also Shopped For
Happy Mouth bits are uniquely constructed with high ...
Description:
Happy Mouth bits are uniquely constructed with high tech plastics, making them soft, flexible, gentle and comfortable for your horse. The Happy Mouth Double Jointed Roller Dee has a double jointed mouthpiece providing independent action on each side of the ...
Happy Mouth bits are uniquely constructed with high ...
Description:
Happy Mouth bits are uniquely constructed with high tech plastics, making them soft, flexible, gentle and comfortable for your horse. The unique apple scent increases your horse's acceptance. Happy Mouth bits are non-toxic, flexible and long lasting with a stainless ...
Sprenger Duo Bits are very gentle on the ...
Description:
Sprenger Duo Bits are very gentle on the horse’s mouth. The mouthpiece is made of soft, flexible plastic which adapts to the horse’s mouth in an ideal way. The material is food-safe, solvent-free and does not contain any plasticisers. The ...
The D-Rings prevent the bit from being pulled ...
Description:
The D-Rings prevent the bit from being pulled through the horse’s mouth so it lies more steadily on the tongue giving a more comfortable feeling. Gentle pressure is pivoted directly onto the tongue ensuring light and precise rein aids. The ...
The JP Hunter Dee w/ Dr. Bristol has ...
Description:
The JP Hunter Dee w/ Dr. Bristol has attractive Dee rings and comfortable curved bars. The Dr. Bristol link applies tongue pressure when required by rider. Imported.
JP Bits by Korsteel provide the ultimate communication ...
Description:
JP Bits by Korsteel provide the ultimate communication between horse and rider. The exclusive curved design provides comfort and enhances performance. Imported
Designed with world-renowned Australian trainer, John Patterson, to ...
Description:
Designed with world-renowned Australian trainer, John Patterson, to provide maximum comfort and top performance. The curved mouthpiece eliminates interference and stops bit from hitting the roof of the mouth, allowing room for the tongue. The shape also reduces the severe ...

Qualifying Items

Qualifying items are eligible for free shipping, every day. Look for the badge below on the product page to confirm that your item ships free!
SmartPerks
Free Shipping

Ride Along Items

Ride Along items are eligible for free shipping when shipped with your next AutoShip order or any qualifying item. Look for the badge below to identify a Ride Along item.
Ride Along Item
Ships free with a qualifying item