Fit Wrist Size - Nylon Sport Band for Band 4.0 One size of 130mm-220mm (5.1 - 8.6inch), Suit for most people, no matter men, women, teenagers,or the aged. You can adjust the band size quickly and easily to fit your wrist correctly.Make sure you beloved for 4.0 tracker safe. Compatible Models - Case and Strap integration design Compatible for 4.0 Bands, The straps are made of high quality nylon material,more soft and stretchy fabric strap prevent your skin from irritation or allergy, flexible, ,washable and quick-dry,keep your wrist comfortable all day. Full Body Protection - The rugged bumper with flexible and shock-resist structure provides your for fitness bands all round multi-protections. Raised bezels protects the screen from scrapes,scratches and shock.Very rugged and strong to keep your precious watch safe. EASY INSTALLATION - Easy to install without tools and one-click disassembly. Precise cutouts make you access to all controls, buttons and sensors. You could charge compatible for strap easily without removing it, locks your watch firmly, never worrying about the risk of falling off. Nylon Band for 4.0 Accessories - Personalize your for Band for men women to match your mood and daily wear style. It is very suitable for running, swimming, cycling, fitness, gathering, climbing, hiking and more outdoor activities. you can change it according to different occasions and your moods & outfits in . Give your for Fitness Trackers a , let it always look more fashionable. Colour:B:Orange Material:nylon Package Contents: 1 * wristband Only the above package content, other products are not included. Note: Light reflection 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.