Good security: 4-dial combination lock design for increasing the security, It is safer than a 4-digit lock. Each lock can be set to your own combination code. Robust and durable: The bicycle U-lock made of high strength thick zinc alloy material, wear-resisting. It with resists corrosion of water, dust and dirt to prolong the life of your lock. Performance under any means peace of mind and greater security. Password setting: Our special high strength zinc alloy lock bodies can take so much force. When setting the password, please press the lock completely.The original password is: 0000. The password should match the tick mark before the lock is opened. Multipurpose: This U lock can used for bicycles, skateboards, sports equipment, doors and fences, fences and lawn mowers, tools, tool boxes and ladders. Easy to set and reset: No key is needed, don't worry about the key being duplicated or key lost, high confidentiality.Numbers are easy to read, maneuver and set to your own preferred combination. Package Included1pcs Motorcycles Password Lock