Master Lock 411RED Lockout Tagout Safety Padlock with Key features a 1-1/2 in. (38 mm) wide, 3 in. (75 mm) tall thermoplastic red body and a 1-1/2 in. (38 mm) tall metal shackle. Designed specifically for safety lockout/tagout applications, padlock is key retaining to ensure that padlock is not left unlocked and the high-security reserved for safety 6-pin tumbler cylinder complies with the "one employee, one lock, one key" directive. Write-on, multi-language padlock labels are included for on-site customization.