1. The strap is thickened, waterproof, sweat-proof, comfortable and soft, comfortable to wear, easy to use, and high-quality choice. The material is harmless to human skin, environmentally safe and non-allergenic 2. Change in a few seconds, buy multiple and change daily to match , or with 's silicone quick release strap to take your watch from the workplace to the gym 3. The quick-release spring rod is included and integrated into the strap, so the width of the watch flange matches exactly, measuring the place where the strap matches the watch case, you can also search online to find most watch specifications, after determining the appropriate width, Choose the corresponding width 4. Top grain and perfect comfort, hand-picked top grain leather with stainless steel buckle. The treated bottom is very soft and does not hurt the skin, minimizing slippage while providing perfect comfort 5. Perfect structure and easy installation, that it is suitable for both men and women, precision cutting holes, can be personalized adjustment, wrist colour: black Material: silicone size: 92x26.7mm Package Contents: 1*strap 1*Screwdriver tool Only the above package content, other products are not included. Note: Light and different displays may cause the color of the item in the picture a little different from the real thing. The measurement allowed error is +/- 1-3cm.