Centaur Blue Steel Slow Twist Tom Thumb Pelham block-return-exchange Traditional side gussets allow for

Traditional side gussets allow for natural movement

Removable sleeves with zippers

Smooth vegetable tanned genuine leather

9% fine silver plate over a brass base

Reflective Zipper Pulls

Centaur Blue Steel Slow Twist Tom Thumb Pelham block-return-exchange Traditional side gussets allow forCentaur's Blue Steel bits are made of a technologically advanced version of Black Steel (traditional Sweet Iron). Blue Steel oxidizes faster and easier compared to Black Steel. It will rust when in contact with air and humidity. This surface rust tastes sweet and naturally stimulates additional saliva production, encouraging better acceptance of the bit by the horse.