The bike lock is made of 26 alloy structural steel links, sturdy and high strength, anti-breaking and anti-cutting,to maximize prevent theft Heavy duty waterproof combination lock with mounting bracket and 3 keys,unfolds to 85cm, long enough to lock the wheel and seat Perfect lock for bicycles, motorcycles, electric bicycles, scooters,generator,gates, fences, grills,lawnmowers, sports equipment, tool boxes,ladders, skateboards, stroller and all other two-wheeled vehicles that want to prevent theft, can be easily placed in the stand,easy to carry and stored in top tube bag or saddle bag Size is 2.63 x 2.63 x 2.16 inches/6.7cm x 6.7cm x 5.5cm after folding,combine the advantages of chain lock and U-Lock Package Includes:1 x Bike Lock,1 x Bracket mount,2 x Screw,3 x Keys,2 x Loop Straps(skidproof)