Sealed Waterproof ShellThe locks are fully wrapped with waterproof plastic shell, no dead corners. Waterproof and dustproof to protect the locking mechanism, ideal for use as exterior locks. Wear-resistant plastic-wrapped shell, at the same time can prevent scratches, durable. Multi-Layer Overlay TechnologyA total of 22 layers of zinc-plated locks are overlaid and fixed with 8 rivets. After impact, fall, collision and other experiments, it is still intact and can effectively resist violent damage. Security Lock CylinderThe internal structure is precise, and the interlocking part between the lock beam and the lock body is very thick, which is an anti-pick lock. Positive and negative slot structure inner cylinder, 4 inner pin cylinder increase tooth specific density, improve cracking difficulties. Best Suitable for OutdoorWide range of applications. Can be used indoors and outdoors. It is very suitable for lockers, yard gate fences, garages, tool boxes and other places.