Smarter gear for smarter riders! Rasons to love all Rockin' SP tack: Handmade in the USA. Made from heavy duty Herman Oak harness leather that's been oiled and hand rubbed, so it comes soft, supple, and ready to work. Fitted with durable, solid brass hardware for a classic look that's built to last. The Rockin' SP Split Reins have tapered ends and exceptionally supple leather that provides unparalleled feel and grip.