Features: Material: This mouthpiece hat protector made of quality Silicone material with fine craftsmanship which is delicate and durable. Soft silicone material feels comfortable. Relieve thumb fatigue. Small size and completely easy to clean. When using the instrument for a long timing, clarinet thumb protector can help eliminates fatigue and stress. Installation and disassembly are very simple. It takes only a few seconds to complete the installation and disassembly. Cushions fit thumb rests up to 15mm wide. Comes with 1pc thumb rests (Assorted in 5 Colors), suit for most Clarinet Oboe. Specifications: Material: Silicone Color: Black/White/Blue/Pink/Green Package Weight: approx.9g Size: approx.3x2x2cm/1.18x0.78x0.78in (More Size Detail, Please See Photo.) Package Includes: 1Pc Clarinet Oboe Thumb Rest note: Please allow 1-2cm error due to manual measurement. Please make sure you do not mind before you bid. Due to the difference between different monitors, the picture may not reflect the actual color of the item. Thanks!