Features: 1. Compatible for Fitbit Charge 5 smart bracelet, replacement strap, made of silicone material, waterproof, sweat-proof, comfortable and soft, thickened strap design, comfortable to wear and easy to use. 2. 2 Sizes optional, S and L, suitable for different wrists, S is suitable for wrist circumference: (Min: 5.6-Max: 7.5), L is suitable for wrist circumference: (Min: 7.0-Max : 8.9), please measure your wrist circumference before ordering. 3. Fully compatible for luxe smart bracelet (not including bracelet), suitable for men and women. 4. Easy to install, just replace it directly, no technology is needed. 5. A total of 10 alternate colors, making your life colorful every day. specification:Material: TPU Size (approximately): S: (single side) length: 103mm/4.05inch, (single side) length: 105mm/4.13inch, width: 23.2mm/0.91inch, suitable wrist circumference: (Min: 5.6"-Max: 7.5") L: (single side) length: 103mm/4.05inch, (single side) length: 145mm/5.70inch, width: 23.2mm/0.91inch, suitable wrist circumference: (Min: 7.0"-Max: 8.9") Color: white, black, orange, pink, red, gray, chrysanthemum blue, khaki, dark blue, light purple Applicable models: Compatible for Charge 5 smart bracelet PackageList:1 * Watch Strap NoteDue to the lighting effects and shooting angles, there is color difference in the product, please understand. Due to manual measurement, there is a tolerance in the product size.