Convenient PIN Lock: The 3-digit bicycle combination lock can be set to your own unique password, and you do not need to worry about losing the keys. Durable Material: The lock core is made of zinc alloy material and the cable is made of steel with PVC coating which is high corrosion resistance; strong and durable. Description: The security resettable combination cable lock is good equipment for protecting your helmet, luggage, or other valuables without anti-theft. The lock core is made of zinc alloy material and the cable is made of steel with PVC coating which is high corrosion resistance; strong and durable. Conveniently it comes with one handy solution, resettable combination locking mechanisms for keyless convenience. The 3-digit bicycle combination lock can be set to your own unique password, and you do not need to worry about losing the keys. Engineering plastic shell and flexible steel cables, solid durable, no cracking at low temperatures, high-temperature environments without distortion. The helmet lock can be extended to 90cm/35.43" approximately, which has the good performance of elasticity and flexibility. Widely suitable for locking the helmet on bicycles, motorcycles or locking luggage, and so on. Specifications: Material: Zinc Alloy, PVC Color: Black Cable Length: The maximum length can be extended to 90cm/35.43" approximately Lock Size: 60x22mm / 2.36"x0.87"(L*W) Password Setting Steps: Step 1: Use the factory set combination 000 to unlock. Step 2: Push the button on the bottom and keep it still. Step 3: Keep holding the bottom button and set a new password. Step 4: Release the bottom button and the password setting is complete. Package Included: 1 x Helmet Lock