This item is a clarinet thumb rest. Provide cushioning for your fingers, relieve pressure and fatigue after playing the clarinet for a long time. It can support your fingers, allowing you to play in the correct posture. Features -Color:Assorted Color -Material: Copper plated nickel + rubber -Size: About 4.00X2.30X1.80cm/ 1.57X0.90X0.71in -Choose the right material to provide extra comfort for your fingers and protect your fingers well. -The humanized design keeps the fingers in the correct position, making playing more convenient. -The non-slip surface makes the saxophone easier to hold and will not drop easily. -It can provide you with a solid, firm and comfortable feeling with an excellent feeling of use. -It is convenient to install on the clarinet, so is better. Package list: 1 x rest 3 x screws 1 x refers to the bracket set