Specifications: Waterproof function, so you do not have to worry about wearing it while washing hands or taking a shower. Replacement watch band compatible with Fitbit Surge, allowing your watch to have a fresh new style. Made of high-quality silicone materials, breathable, skin-friendly, soft, and durable. Features a buckle closure for adjustable fit according to your wrist size. Item Name: Watch Strap Material: Silicone Compatible Model: Fitbit Surge Features: Waterproof, Soft, Solid Color, Adjustable Width: 2.2 cm / 0.87 in (Approx.) Thickness: 0.2 cm / 0.079 in (Approx.) L Wrist Circumference: 5.8" - 8.7" (Approx.) S Wrist Circumference: 5.1" - 7.3" (Approx.) Notes: Due to differences in lighting and screen settings, the item's color may vary slightly from the images. Slight dimensional variations may occur due to manual measurement. Package Includes: 1 x Watch Strap (Smart Watch Not Included) 5 x Screws 1 x Screwdriver