I used this for a rental locker for a while. It's in very good condition. ■ Uses ● School and office lockers, mailboxes, bags, parking lot bollards, etc. ■ Features ● Lightweight and durable aluminum body (approx. 30% lighter than brass). ● Hardened steel shackle achieves a high level of lightness and strength. ● "Safe design" with no key number stamped on the body, preventing serious unlocking crimes. The key has a key number stamped on it. ● Excellent durability. ● Lightweight and durable aluminum body. ● Excellent durability. ■ Specifications ● Width (mm): 40 ● Shackle diameter (mm): 6.5 ● B (mm): 23 ● C (mm): 22 ● Includes 2 keys ■ Materials/Finish ● Body: Aluminum alloy ● Shackle: Hardened steel ● Key: Brass