Special shape design fits your metal thumb rest perfectly. Thumb rest is made of rubber material, offering high flexibility and a comfortable wearing experience. It is tear-resistant and durable. Designed for universal fit with 14.517.5mm diameter thumbs, it provides comfort and ease of use. The rubber protector helps reduce thumb pain, protects the thumb rest, and safeguards your instrument and hand. Ideal for providing support and enhancing playing performance. Thumb Rest Size: (L x W x H): 27 x 16 x 20mm / 1.1 x 0.6 x 0.8 inch Protector Size: 20 x 15mm / 0.8 x 0.5 inch (Dia x Thick) Model Number: Thumb Rest Color: Silver Material: Metal + Rubber Package Contents: 1 x Thumb Rest 1 x Rubber Cushion 2 x Screw Note: The package includes only the items listed above. Other products are not included. Light and display differences may cause slight color variations between the image and the actual item. Measurement may vary by +/- 1-3cm.