Features:1. Made of silicone, it is soft and durable, and it is extremely comfortable to wrap around the wrist.2. High-quality parts, wear-resistant and pressure-resistant.3. Made of one-piece injection molding, accurate cutting without burrs, simple and beautiful.4. The size can be adjusted according to the condition of the individual wrist.5. The kit contains both a watch case and tools and and spring bars and screws. Completely equipped, easy to install.Spec:Condition: 100% Brand NewItem Type: Watch StrapMaterial: SiliconeStrap Length: about 13.3cm + 9.5cm / 5.2in + 3.7inCase Length: about 5.5cm / 2.2inCase Width: about 5cm / 2inCase Height: about 1.5cm / 0.6inPackage List:1 set of Strap (two sections)1 * Case4 * Black Small Screw2 * Spring Bars Tool3 * Spring Bars Replacement PartsNote:1. Please allow slight error due to manual measurement. Thanks for your understanding.2. Monitors are not calibrated same, item color displayed in photos may be showing slightly different from the real object. Please take the real one as standard.