No matter what instrument it is, it needs a good accessory, and our key fixing gaskets are designed to better match your tuba! Their size is moderate and suitable for different trombone, trumpet, etc. They can become your right-hand assistant whether they are daily practice or competition. Features - Color: White, Black - Material: Cotton - Size: About 1.80X1.80X0.30cm/0.71X0.71X0.12in - Manufactured with excellent materials are strictly selected for better performance. - It's easy to store because it's so small that it will be convenient to carry with you. - You can use it for yourself or give it as a present to beginners or friends. They will be encouraged. - You can get this set of instrument key pads at an absolutely favorable price. Don't hesitate. You deserve one. - We always provide you with the highest music accessories based on the premise of performance and high performance. Package list: 20 x gaskets