Wide Compatibility - This trumpet mouthpiece is suitable for most standard trumpets in the market, such as: , , , King, etc. PREMIUM MATERIAL - This trumpet mouthpiece set is made of high quality brass with a beautiful finish for improved . Play with ease and comfort. The mouthpiece is sized for treble registers and C trumpets, and it's the perfect size for a perfect feel and easy portability. size: 7.09 x 5.63 x 1.34 inches Material: brass colour: gold Package Contents: 1 x 3C Trumpet Mounthpiece 1 x 5C Trumpet Mounthpiece 1 x 7C Trumpet Mounthpiece 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 a little different from the real thing. The measurement allowed error is +/- 1-3cm.