1. Dimensions: 1.67inch*0.85inch*4.17inch(L*W*H) 2. Shackle diameter: 0.23 in 3. Material: hardened steel and zinc alloy 4. Weight: 138g Coded padlocks provide keyless convenience. Unlike traditional padlocks, we don't need to carry a key with us or risk losing it at any time. WHY CHOOSE ZHEGE 4-DIGIT COMBINATION PADLOCKS? < p>A. EASY TO USE Easy to set up: Just 6 steps to set and reset your own combination as many times as needed. Easy to read: The unique window design of Side reading and large numbers make this a perfect number padlock for young and old. Easy to Align: With an advanced dampening device inside, the numbers will stop at the correct position with each numbering. B. Sturdy and durable Made of premium material, the long outdoor heavy duty 4-digit code padlock is sturdy and highly resistant to cutting and sawing. Classic metal locking mechanism with excellent craftsmanship, simple but definitely reliable and durable to withstand any weather. C. Wide Application The long keyless locker padlock is perfect for indoor use on gym, school and employee lockers, all kinds of tool boxes, cabinets, pantry dining, etc. Feel comfortable using the weather resistant caneda locker code neck on your fence gates, sheds, garage doors, hasps, containers, etc.