HIGH QUALITY MATERIAL --- Bicycle frame lock by high strength zinc alloy lock head, anti-rust anti-corrosion waterproof and dustproof, solid and robust. Seven core protection, increasing safety factor. PVC coating helps prevents our bike lock from scratching your bicycles. extended life EASY TO CARRY --- The ring-shaped appearance is simple and beautiful, soft and comfortable, mini and portable. free hanging on handlebar, seat, frame or placed in bicycle storage bag. Also, it can be hanged under your bicycle saddle. Can also put it in your pocket or hang it on your arm. don't worry about unintentional loss CONVENIENT TO USE --- Dust cover button, just press to open the dust cover,convenient and quickly. The out layer of the key is wrapped with ABS, strong and sturdy. Circular groove design, hard to copy, increase safety. Each key has own number, low probability of unlock by other same keys, can be used with confidence Buy it with Product Quantity: 1 Pieces Product color: blue Product size: 12*14.6cm