Made of natural silicone, soft, lightweight, durable, and comfortable to wear Suitable for most watches with a ear width of 20mm It is important to measure the correct size to avoid any inconvenience caused by returns or exchanges. If you have any questions about the size of your opponent, please feel free to contact us at any time Adopting non allergic stainless steel needle buckle, sturdy and durable Package included: 1 * Silicone Strap, 1 * tool kit, easy to replace with our free tools. Watches take on a new look! Non original, a great substitute Soft natural rubber material, waterproof and sweat resistant, comfortable to wear, durable, suitable for most watches with a ear width of 20mm. Please carefully check whether the ear size of the watch is correct before purchasing