Jump'in Waterford Full Cheek BitWe love this bit because of the high quality of materials and the solid design. Featuring 50mm rings, a 17 mm mouthpiece, and composed of a German Silver Alloy, this bit is unique in the fact that breaks up the pressure points on the horse. Helps keep horses light in the mouth. Full Cheek Bit German Silver (65% Copper, 23% Zinc, 12% Nickel) 50mm Rings 17mm Mouthpiece Breaks Up the Pressure Points Sizes: 12. 5cm 13. 5ccm **Due to the contagious nature