Ultra-strong and high quality - Our bike locks are made of high-performance steel, strong, cut and shear resistant, and can withstand high torsional and tensile strength. Highly secure bike lock provides amazing comfort and safety for your bike - 2 keys, protective cover - The chain is made of waterproof and dustproof ABS rubber paint, which effectively protects it from rust, oxidation and corrosion. This greatly extends the life of the lock and prevents it from damaging the bike frame. Flexible folding design - special rivets are adopted to make folding easy and flexible, significantly reduce the size of the locker based on the largest dressing room and make installation and removal easier. Folded size: 6.6*5.5*7.5 cm, size: 83 cm, supports some bike brackets for easy installation - thanks to practical high-quality brackets, your lock fits you.