High-strength Zinc Alloy Body With high safety, wear resistance and corrosion resistance, the high-strength metal code lock can be brand new and ensure safety even if it has been used for a long time. Hardened Steel Shackle The hardened steel shackle comes with a diameter of 7mm and has undergone multiple heat treatment to be harder, cut-proof, and safer. Stronger Lock Mechanism 12mm of the shackle is locked inside the lock body when in use, which is much longer and safer than most combination locker padlocks in the market. Read more Read more ZHEGE Tough-Guy Series combination padlock comes with the high contrast of large white numbers on black wheels. It can be easily read even in low-light conditions, e.g. outdoors at dusk and night, side doors in warehouse, dark gym locker room corners, etc.