ETOOK Bike Chain Lock Security Anti-theft Bicycle Lock Chain with Keys Lengthen Chain Lock for Motorcycle Bicycle Accessories

Product Information：

Brand: ETOOK
Name: Chain Lock
Size: S: 75cm L: 90cm XL: 110cm
Weight: S:1430g L:1630g XL: 1830g
Material: Special steel alloy with heat treatment
Key: Copper-nickel alloy
Security level: Level 5- (long period in the night, against professional thief)

Features：

1.Speicial steel alloy with heat treatment, hardened surface, strong and high toughness, no chance for being thumped, sawed, sheared and drilled.
2.The lock cylinder with advanced Switzerland technology, effectively from lock picking.
3. The finest of the key teeth is only 0.3-0.6mm, which avoid the key copied effectively.
4. We use 900D high-end, long-life fabric sleeve to cover the chain and prevent from scratching.
5.With anti-drilling cap, prevent the electric drilling.
6.With waterproof and dust proof cap to protect the lock cylinder.