1 RESISTANT PADLOCK: Each electric bike lock is suitable for most locks. This long scooter lock is 35cm long and 12cm wide. NO KEYS REQUIRED: No keys are required for this combination bike lock. To create the code, simply remove the handle from the bike lock and align all the dots with the mark. Turn the top anti-clockwise 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 to help you out. ROBUST AND WEATHER RESISTANT: This electric scooter combination lock is made of zinc alloy. The strength of the material helps protect your door, gate, dumpster or gym locker from any theft attempt. The 4-digit combination not only eliminates the need for a key, but is also more secure as up to 10,000 combinations can be defined. This bike lock is therefore 10 times more secure than a 3-digit combination padlock. SUITABLE AND SECURE: This bike lock can be used to lock and secure almost all types