Strong Protection - High quality 190T nylon fabric, double stitched, high density and durability The cover is strong and waterproof to protect your bike from rain, dust, sun and scratches 2 Sizes fits most bicycles - Size XL (LWH): 200 * 70 * 110cm, suitable for bicycles up to 75cm height Size S (LWH): 170 * 60 * 85cm, suitable for the small child's bike It can be used for road bike, mountain bike, electric bike Buckle for wind resistance - A specially designed buckle is at the bottom of the back side of the cover, which can be buckled to stabilize the bike cover and protect the cover against the wind on windy days Anti-lost design - Designed with locking holes at the bottom of the front of the cover It helps stabilize the cover and pass an anti-theft to counter theft