Features: Make of Q235 steel, the swivels joint is extremely hard. The AntiTheft lock cores is not easy to rusts. The outside of the chain is wrap with fabric, beautiful and scratch resistant. It can quickly lock with a button, saving time and effort. Comes with 3 key to ensure safety and theft protections. The surfaces of the handcuff lock is cover with soft silicone, which can improve grip comfort, protect the handcuff lock from rusts and scratches and prevent scratches on frame. Comes with a large capacity storage bag that can store handcuff lock and daily items. Perfect for electric scooter, bicycles, strollers, motorcycles, playpens. Specifications: Materials: Q235 steel Total length: about 90cm/35.43inch Chain length: about 60cm/23.62inch Package Includes: 1set Bicycles Chain Lock note: Please allow 1-2cm errors due to manual measurement, make surely that you not mind before order. Due to difference between different monitors, the picture may not reflect the actual color.