MaterialHigh-strength zinc alloy lock head, anti-rust and anti-corrosion, solid and sturdy. Lock body surrounded by PVC, comfortable and soft, avoiding scratching the frame, longer service life . Keyless lockNo key needed, just press lightly, the bike will be locked, convenient and quick. The outer layer of the key is wrapped with ABS plastic, which is strong and durable. Circular groove design, not easy to copy, increasing safety. Each key has its own number, low probability of unlocking by other same keys, safer and anti-theft. Multi-style bicycle lock waysBike lock has different styles of locking, complete. You can lock the rear fork or the rear wheel. It can also be used as a disc brake. You can use two or more locks to lengthen the bike lock and lock multiple bikes together. Portable and easy to carry Single lock length is 30cm, diameter is 1.2 cm, circle diameter is 9cm, weight 140g, soft and comfortable, mini and portable. You can put it in your pocket or hang it on your arm or bike. Also, it can be hung under your bike saddle. Widely ApplicationIdeal for bicycle lock, mountain bike, road bike, city bike, mountain bike, perfect for your riding trips . Please note that due to manual measurements and display differences, there may be slight differences between individual products and photos.