The Metalab Jointed 16 MM Copper Rollers Full Cheek Snaffle is a stainless steel, full cheek bit designed with a jointed mouthpiece with copper rollers. 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.