The Bob Avila Collection by Professionals Choice Equine Training Shank Three Piece Copper Roller Bit<div style="text-align: left;"><strong>[Product Information]</strong><br><ul><li>Smooth snaffle bars and copper dogbone center.</li><li>Side rings allow for greater adjustability.</li><li>Mouth - 5 1/8"， cheek - 6 1/2".</li></ul></div><img src="http://ecx.images-amazon.com/images/I/41rqC1ZqAEL.jpg" noproxy>