The Master Lock Chain Key Lock gives your bike the ultimate protection with a heavy duty chain lock. The Master Lock Chain Key Lock is 90cm long and features 8mm diameter hardened steel links, offering resistance to cutting and sawing. The nylon sleeve provides additional protection for equipment. The disc key cylinder provides anti-picking resistance.Master Lock Chain Key Lock FeaturesHardened steel chain resists cutting, sawing and pryingNylon cover prevents from scratchingIntegrated anti pick disc key cylinder for high security More info