With its stretchable characteristic and light weight, it is easy to carry and not taking up space.The password can be combined and modified at will, which is safe and anti-theft.The lock core is made of zinc alloy, cable is made of steel, and wrapped PVC material, which make it durable.The stretched length is about 1.5 meters.It is suitable for bicycles, suitcases, helmets, backpacks, etc.Item Name: Helmet LockMaterial: Steel,PVC,Zinc AlloyFeatures: Anti-theft, Stretchable, 4 Digit Color: BlackSize Details: Stretchable Length: 1.5m/59.06" (Approx.)Notes:Due to the light and screen setting difference, the item's color may be slightly different from the pictures.Please allow slight dimension difference due to different manual measurement.Package Includes:1 x Helmet Lock(Others Not Included)