This is a mouthpiece designed from scratch by SMK Craftworks, for horn players, by horn players. It offers easy control over the sound's attack. 【Brand】SMK Craftworks 【Model Number】SMK-750T-BR 【Specifications】Cup Inner Diameter: 17.5mm 　　　　Throat Diameter: 4.0mm 　　　　Cup Shape: U-cup 　　　　Depth: Shallow 　　　　Rim: Thin 　　　　Shank: 3/100mm 【Surface】Solid Brass Finish (Limited Quantity) 　　　　The solid brass finish will change color over time. 　　　　Please note that the luster shown in the photos may have faded depending on the time of order. Free shipping nationwide *Shipped via Yu-Packet Post Mini