Francois Gauthier, aluminum hinged port bit. 5¹/₈"(131 mm) mouthpiece with copper roller and barrels. 8¾" (222mm) engraved aluminum cheeks with engraved stainless steel conchos and slots. Suitable for any kind of rider’s hands. Help to control right and left shoulders independently. For the more advanced horse. Light and comfortable with a moderate to strong effect.