The only crystal mouthpiece manufacturer in the world since 1950. High quality has earned a lot of players and is supplying products to many corporate companies. Each 14 of these fine crystals from the Tuscany region of Italy are handcrafted by skilled craftsmen. The crystal will never change over time and produces beautiful sound that combines softness and warmth. Opening: 1.39mm Facing Length: 19mm Jazz Model Size ジャズ☆ Color Name Crystal Jazz Item Weight 2.46 ounces Item model number 5529 Package Dimensions 3.5 x 1.3 x 1.18 inches