?After-Sales Service?: Any question about Mugust fitbit charge 2 bands, please feel free to contact us via "contact seller" by email at any time. We will try our best to help you solve the problem. Fast response and immediate action within 12 hours. ?Easy to Install/Remove and Stay Clean?: Rinse the fitbit charge 2 strap with water or wipe it with rubbing alcohol. Mugust replacement band for charge 2 bands will bring you a comfortable wearing experience. ?High Quality Material?: Mugust for fitbit charge 2 bands are made of durable and flexible elastomer. Eco-friendly, comfortable to wear and safe for the human skin. Sweat resistant & water resistant, perfect for sports and workouts. ?Available in 2 Sizes?: Small size for 5.5" - 6.7" (140mm - 170mm) wrist , Large size for 6.7" - 8.1" (170mm - 206mm) wrist. Multi-holes design can adjust the length of the charge 2 bands according to your physical size. ?Double protection?: Mugust replacement band's round edge buckle and the loop's nub design provided double protection for Fitbit Charge 2 tracker device, holding the fitbit charge 2 bands in place precisely and securely. No worry about losing your fitbit charge 2.