Flexibility & Comfortable The clarinet thumb protector is made of rubber material, Which is soft & comfortable when used, tear-resistant and durable Functional Clarinet thumb protector eliminate sore thumbs, alleviating the fatigue and stress of long-term playing, Protect your thumb from pain Easy to Use Installation and disassembly are very simple, Just takes only a few seconds to complete it Flexibility & Comfortable: The clarinet thumb protector is made of rubber material, Which is soft & comfortable when used, tear-resistant and durable Universal Size Set: Includes 5 pack thumb rests (5 Colors), Universal finger rest approx. 22 mm/ 0.87 inch in length, 20 mm/ 0.8 inch in width, 10 mm/ 0.4 inch in thickness, suit for most Clarinet Oboe Functional: Clarinet thumb protector eliminate sore thumbs, alleviating the fatigue and stress of long-term playing, Protect your thumb from pain Unique Shape Design: The shape of our clarinet soft thumb rest is curved shape design to fit your instrument greatly, help maintain correct finger position Easy to Use: Installation and disassembly are very simple, Just takes only a few seconds to complete it