Master Lock 410KARED2KEY Safety Series Padlock for Lockout/Tagout Applications, Red Zenex thermoplastic body is nonconductive and functions in temperatures from -70 to 350 degrees F Retains key until locked, to ensure padlock is not left unlocked Keyed alike 6-pin tumbler cylinder for security with single key convenience for multiple locks "Property of" labels with blank lines for customization and "Danger: Locked Out Do Not Remove" labels included Limited lifetime warranty