DURABLE - The manganese steel chain is unbreakable and extremely wear-resistant, rust-proof and saw-resistant, protecting your belongings. You can use it to chain up to 2-4 bikes. NO KEY REQUIRED - The 5-digit code offers up to 100,000 possible combinations, making it almost impossible to decrypt and greatly reducing the risk of theft. And the suit is customizable and can be changed as often as you like. No keys are needed, no need to worry about losing the keys! This coded bike lock is ideal for protecting your bikes, electric scooters, motorcycles, lawn mowers, gates, fences, tool boxes, etc., ladders. BEST CHOICE - the padlock is covered with an ABS shell that will not crack at low temperatures and will not deform at high temperatures; The zinc alloy padlock is equipped with a locking system according to international standards, dustproof, waterproof and resistant to drilling and sawing. GOOD QUALITY - The foldable bicycle with anti-theft chain is protected by reflective fabric,