Key retaining - ensures that padlocks are not left unlocked , cannot remove key until shackle is closed Designed exclusively for lockout/tagout Locks comes with one key: Compliance with OSHA ""one employee, one lock, one key"" directive Optional shackle heights of 1-1/2"" or 3"" are available upon request Includes write-on ""Danger"" and ""Property of"" labels in English, French and Spanish Reserved-for-safety cylinder provides over 44,000 unique key changes available Special thermoplastic body offers superior performance against chemicals, moisture, temperature and UV Uses FDA approved lubricants safe for use in food processing Durable, lightweight, non-conductive body is easy to carry For extra keys, keyed alike options or master keying, please call us Each keyed alike set includes 2 keys Body Length 1-3/4"" Body Material Thermoplastic Body Width 1-1/2"" Key Type Keyed Alike Shackle Clearance Height 1-1/2"" Shackle Clearance Width 25/32"" Shackle Diameter 1/4"" Shackle Material Nylon Type Safety Padlock