Strauss Cycle/Bicycle/Helmet Multi Purpose Number Lock, (Black) and Bicycle Speedometer, (Black/Red) Extra Protection and Security : In Any Case the Number of Lock would not be Changed or Reset, This Will provide you an Extra Protection and Security 4-digit combination locking mechanisms for keyless convenience. Ideal for use with Motorcycle, Bike, Bicycles, Helmets, and Luggage for keyless locking. Flexible high strength steel cables for cut and abrasion resistance nature. Outer PVC coating to prevent scratching on. Portable size, light weight, wide application this bike odometer is only for 1.8 x 1.8 inches (l x w) and 0.18 lb, which is easy to carry and save your space Multi functions with auto sleep and wake-up its records speed in mph/kmph, riding time, distance, scan, maintenance alert