The Metalab Double Jointed 11 MM Copper Roller Link Full Cheek Snaffle is a full cheek, stainless steel snaffle. The 11 mm mouthpiece features a copper roller link. Metalab steel is manufactured on a base of 18 chrome high quality stainless steel and this by using the "Lost Wax" procedure. This procedure assures a perfect workmanship compared to the sand mold procedures where small mistakes can occur. The addition of copper to the mouthpiece encourages salivation and relaxation.