Keyless Combo Lock: 4-digit codes offer 10, 000 resettable combinations for increased security compared with 3-digit codes. Easy to set your new safe password for keyless convenience. Sturdy and Durable: The lock body is made of premium zinc alloy material. The internal lock cylinder is made of solid brass, not easy to rust with longer service life. Heavy Duty Lock: The hardened steel closed lock shackle offers better cut resistance than carbon steel, which reduces the possibility of hammering, sawing, or prying to open. Safe Circular Design: The disc padlock is designed with a round shape, which minimizes shackle exposure and allows excellent cut resistance for higher security. Wide Applications: combination padlock is great for warehouse, garage, gate, fence, school gym locker, storage units, trailers, moving trucks, etc. Specification: Lock Type: ‎Keyless Combination Lock Material: Zinc Alloy Body & Hardened Steel Shackle Product Dimensions: ‎2.74 x 2.74 x 0.95 inches Item Weight: 8.22 ounces Features: Hardened Steel Lock Shackle The lock shackle is made of high-quality hardened steel, sturdy enough for excellent cut resistance. Heavy duty and durable. 4-Digit Combination Dial It provides 10,000 secure combinations for increased security. Easy to set your new password for keyless convenience. Safe Circular Design The combination lock has a round shape which minimizes shackle exposure and allows better cut resistance for higher security.