7/8 inch x 1-7/8 inch. Tough under fire. Use words, numbers or both! Easy 2 set & reset. AntiShim. Precision dial. Never forget your combination again! 1. Set-Your-Own combination using 3 letters, numbers or both. 2. Choose a combination easy for you to remember - a name, initials, word, Pin No. or text. 3. Easy to set & reset with included reset tool (instructions enclosed). 4. High precision dial clicks for easy use. 5. Hardened steel 9/32 inch shackle diameter for increased bolt cutter protection. 6. Ideal for school, gym or storage lockers. Limited lifetime warranty. View instructional video at masterlock.com. Combo Locker.com by Master Lock: Store your combination or key number at www.combolocker.com. www.masterlock.com. Made to exclusive Master Lock specifications in China.