ULTRA STRONG AND HIGH QUALITY - Our bike lock is made of heavy-duty steel that is tough, cut-resistant, shear-resistant, and withstands high-strength torsional and tensile strength. The high-security level bike lock to keep your bike safeAMAZING CONVENIENCE AND SECURITY - 3 Keys for convenience You can take one of the keys to use in daily life, and you can leave another key at home in case you accidentally lose one. The key can only be pulled out when locked, which prevents the key from being lost LAYER COVER - Chain covered with waterproof & dust-proof ABS rubber paint, which can affect it from rust, oxidation, corrosion. It significantly improves the life of the lock and prevents it from damaging the bicycle frameFLEXIBLE FOLDING DESIGN - Featuring special rivets that make folding easy and flexible, greatly reduces the locker size on the basis of the largest locking space, and makes it more convenient to install and carry around. Folding dimension: 6.6 * 5.5 *7.5 cm, expand size: 78 cm, support several bicyclesSIMPLY INSTALLING BRACKET - Convenient high-quality mounting bracket means your lock goes with you, Our bracket is installed by, suitable for any bike tube. Lock Weight: 1.3 lbSpecificationPagoda anti-theft folding lockAnti-theft level 12Zinc alloy lock outer layer ABS plasticFinnish lock cylinderLength about 85CM (after expansion)Section 26 lengthened lock body rivet link3 stainless steel keysWeight about 725gPackage ContentLock*1, strap screw*2, key*3, lock frame*1