TheHiplok Z-Lok Combo Armoured Reuseable Lock provides ultra-convenient added protection for use on car racks, with accessories and other outdoor equipment. Hiplok’s double ratchet design combined with a steel core and springs allows the z lok to be both secure and lightweight. Hiplok Z-Lok Combo Armoured Reuseable Lock Features Single z lok Double ratchet locking mechanism Reinforced steel core Basic security for low-risk areas Universal release key included