The 8pcs silicone thumb rest covers are designed to provide comfortable support for clarinet and oboe players. They help reduce finger fatigue and provide a non-slip grip during extended playing sessions. The black silicone covers are and easy to install, making them essential accessories for woodwind musicians. This accessory can make your instrument playing more skillful This fingertip can effectively protect your saxophone Colour:Black Material:Silica gel Size:1.9x1.8x0.6cm Package Contents: 8 x Single reservation fingers 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 a little different from the real thing. The measurement allowed error is +/- 1-3cm.