Features: Premium material: made with high quality brass material, solid and durable. Exquisite craftsmanship: CNC processed, plated mouthpiece with shiny surface, safe and comfortable to play. Great sounds: the mouthpiece offers strong air tightness, producing pure, full, metallic tones. Good mouthpiece: suitable as a replacement for your old or broken tuba mouthpiece, easy to install. More information: trumpet size is 7; length is 99mm; cup diameter is 47mm; backbore diameter is 13.3mm. Specifications: Material: Brass Color: Silver Item Size: 4.7 x 4.7 x 9.9cm / 1.85 x 1.85 x 3.89in Item Weight: 169.6g / 5.98oz Package Size: 11.3 x 6 x 5.6cm / 4.44 x 2.36 x 2.20in Package Weight: 260.8g / 9.19oz Note: Tuba mouthpiece only, other items in the pictures are not included. Package Contents: 1 x Tuba Mouthpiece Only the above package content, other products are not included. Note: Light reflection and different displays may cause the color of the item in the picture to appear slightly different from the real thing. The measurement allowed error is +/- 1-3cm.