Safety Lock Cylinder: The inner liner with positive and negative groove structure. The four pinned cylinders in the inner liner increase the density of the gear ratio and increase the difficulty of cracking. So you can use it safely. Multi-Layer Stacking Technology: A total of 22 layers of galvanized interlocking plates are stacked and fixed by 8 rivets. Experiences such as impact, drop and collision are still intact and can effectively withstand violent destruction. Wide Range Of Applications: The lock can be used both indoors and outside. He can answer your questions. Very suitable for lock cabinets, yard doors, garages, tool boxes, gymnasiums and other places. Portable and Durable: The internal structure is precise, the lock part of the beam of the lock and the lock body is thick and tamper-proof. The bottom is wrapped in hard-wearing plastic to prevent scratches and is durable. Buy with Confidence: We want all of our customers to have the best service and are committed to