DURABLE - The manganese steel chain is unbreakable and highly wear-resistant, stainless and resistant to sawing, thus keeping your belongings safe. It allows you to chain up to 2-4 bikes. NO KEYS NEEDED - The 5-digit code offers up to 100,000 possible combinations, which makes it almost impossible to decipher and greatly reduces the risk of theft .And the combination is individually adjustable and can be changed as many times as you want. No need for keys, you don't have to worry about losing the keys This coded bike lock is ideal for protecting against theft your bicycles, electric scooters, motorcycles, lawn mowers, gates, fences ,toolboxes and ladders. BEST CHOICE - the padlock is covered with an ABS shell that will not crack in low temperatures and will not deform in high temperatures; The zinc alloy padlock has a locking system based on international standards, dustproof, waterproof and resistant to drilling and sawing. GOOD QUALITY - The foldable bike lock chain protected by a reflective fabric, it protects the chain and prevents it from scratching your belongings.