Material: The lock cylinder is made of stainless zinc alloy, the steel cable is made of high-strength braided steel wire for high strength and durability. The lock rope is covered with a layer of PC soft glue, which is colorless, odorless, waterproof, sweat-resistant, and wear-resistant. Package and Size: The package includes two black anti-theft combination locks. The lock body is 0.83 inches/2.1 cm wide, 2.28 inches/5.8 cm high, and 0.33 inches/0.85 cm thick. The diameter of the lock rope is 0.1 inches/0.25 cm, and the spring wire rope can extend up to 43.3 inches/110 cm. Unique Design: Our combination lock differs from other combination locks on the market; it is small, lightweight, and very delicate, taking up minimal space, so you can put it in your bike bag, pocket, or backpack. The high-quality material makes it very light and more robust. The combination lock also saves you the hassle of carrying a key. Advantage: The bicycle lock's code is resettable, and the 3-digit bicycle code lock can be set to up to 1000 unique personal code combinations, reducing the risk of random theft and protecting your bikes and other valuables from being stolen. This lock is exquisite and portable, and it is lightweight, so it won't be cumbersome to carry around or attach to your bike. Multifunctional Bicycle Lock: In addition to securing bikes, motorcycles, or mopeds, you can also use it to lock skateboards, doors, fences, helmets, sports equipment, toolboxes, luggage, strollers, etc., and for other security applications.