Universal Compatibility: Designed to fit any 12mm watch heads, cases, and other components, offering versatile use across various watch models Adjustable Wrist Size: Accommodates wrist sizes ranging from 5.6 inches to 8.5 inches, ensuring a comfortable and secure fit for different users Secure Reverse Buckle Design: Features a reverse buckle mechanism for a firm and secure closure, providing added safety during wear High-Quality Silicone Material: Made from premium silicone, the strap is soft, flexible, and durable, providing a comfortable wearing experience Easy Installation: Simple to attach, allowing for quick and convenient strap changes without the need for special tools Specification: Product Size: 89mm+100mm Width: 12mm Product Weight: 15g Wrist Size: 5.6-8.5 inch Material: Silicone Compatibility: For any 12mm watch heads, cases, etc. Dial Diameter: 38mm Note: 1. Please allow 1-3 mm error due to manual measurement and 1-3g weight error make sure you don't mind before ordering. 2. Due to the lighting of the photos and the difference of monitors, the pictures may not reflect the actual color of the real item. Please make sure you don't mind before ordering, thank you! About Shipping: 1.please pay attention to your delivery address such as: name, street, house number, doorbell/email without name, etc. is correct, or the order will not be delivered correctly. 2.All items will be shipped within 3 business days after the payment is received. Most times you will receive them within 8-12 days then. The specific delivery time is depend on circumstances. 3.During the shopping process, if you have any questions, please feel free to consult us, we will reply you within 24 hours Hope you have a pleasant shopping experience!