This premium Myler bit features a 5 inch mouthpiece with a Cyprium ported barrel mouth. Cyprium-90 bits are produced from a high-tech alloy containing more copper and guaranteed to be free of nickel. These high copper and nickel free characteristics encourage salivation to help prevent dry mouth. Cyprium bits are lightweight with remarkable tensile strength and durability. 5 inch HBT shanks. Myler Level 3 mouthpiece.