The Racing Dee Bit with Copper & Stainless Steel (SS) Rollers is a popular bit designed for racehorses, known for enhancing responsiveness and comfort. Its defining feature is the copper and stainless-steel rollers along the mouthpiece, which work together to keep the horse's mouth moist and responsive.

 This moist mouth condition encourages better acceptance and communication of the rider's rein aids. The rollers also allow slight movement in the bit, preventing the horse from grabbing or leaning on it, promoting more decisive turning and control.