The user settable Steel Ball Combo lock is permanently forged to compact 2.5’ 8mm (0.32”) titanium reinforced hardened steel square link chain. With a user settable combination theirs no fear of losing keys.Hexagonal and square links present more hardened surfaces than round links making sawing and cutting virtually impossible. Titanium surface hardening vastly increase cut and saw resistance.Embroidered nylon chain covers wont crack or peel for long lasting beauty. Velcro tabs keep cover in place to help protect paint and finishes.comprehensive selection of locks types,chain lengths and link size to exactly match security needs.Chain dimensions: 80cm x 8mmKey Features:10,000 possible combinations,4-8mm (0.16-0.39”) titanium reinforced, hardened steel square link chain resists cutting or prying,Chain cover protects paint and finishes, embroidered logo won’t flake or wear off..