Antimicrobial combination lock features a rugged steel inner case, case-hardened steel shackle and permanently lubricated, rust-resistant mechanism. Lock is infused with antimicrobial protection to inhibit the growth of bacterial odors, and includes rust-resistant, chrome-plated outer case, and secure three-number dialing in a 1-7/8" (4.76cm) diameter body. Assorted colors include medium blue and turquoise.