Definitely that you can better protect your bikes for prevent it loss with this lock, which has thicken texture to use, it also has high strength and elasticity to be solid to use, and the waterproof make it be wear-resistant to use.Featuring anti-scratch surface which is high quality and the outer layer is hard to deform, the double side key teeth will greatly reduce the mutual opening rate when using.By making with zinc alloy, alloy steel and silicone materials, this lock is solid and wear-resistant to use.The length of the product is 16cm, the width is 21cm, the height is 3.2cm.It is suitable for protect your bike from loss and anti-theft.Item Name: Bicycle LockMaterial: Silicone,Zinc Alloy,Alloy SteelFeatures: U-Shaped, Solid, Anti-TheftColors: BlackSize Details: 16cm x 21cm x 3.2cm/6.3" x 8.27" x 1.26" (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 Bicycle Lock2 x Keys1 x Lock Bracket