AJ Tack Argentine Hinged Port Correction Bit with Copper Rollers performance bit A three piece mouthpiece featuring a Exion VT 1000 SS Black Pony CP A three piece mouthpiece featuring a solid copper moon dogbone center link sits at the heart of this bit — promoting natural salivation and bit acceptance while distributing pressure evenly across the mouth for a soft 5 8" x 7'9" Sizing — Standard width and length suited for roping and everyday western riding across most horse sizes AJ Tack Argentine Hinged Port Correction Bit with Copper Rollers — 5" Hinged Low Port Stainless Steel Roller — Active center engagement element that keeps the horse interacting with the mouthpiece for more consistent