HEAVY DUTY LOCKS: This electric bike lock is suitable for most locks. This long scooter lock is 28.5 cm long and 7.6 cm wide. Once locked, the shackle thickness is 14 mm. Please refer to the images for the full dimensions of this lock. NO KEYS NEEDED: This combination bike lock does not require a key. To create the code, simply remove the shackle from the bike lock and align all the points with the mark. Turn the top part counterclockwise and remove the rings. Replace the rings with your code and replace the cap. Full instructions are provided and you can also watch the video on the website for help. HEAVY DUTY AND WEATHERPROOF: This electric scooter combination lock is made of zinc alloy. The strength of the material protects your door, gate, dumpster, or gym locker from any theft. The 4-digit combination not only eliminates the need for a key, but is also more secure because it can be set to up to 10,000 combinations. This bike lock is therefore 10 times more secure than a 3-digit combination lock. SUITABLE AND SECURE: This bike lock can be used to lock and secure almost any type of object. With its long shackle, it is perfect for your outdoor bike and can pass through the body of the bike and the wheel for optimal security. This anti-theft bike lock can also be used with your shed and even with certain storage containers. Delivery quantity: One piece