The Metalab Stainless Steel Double Jointed Oval Link Gag is a stainless steel, double jointed gag bit with an oval link. The solid mouthpiece is 17 mm. 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.