Lockout tagout device is best used for electrical lockout applications as part of a comprehensive OSHA compliant lockout/tagout safety program Patented rotating design allows for easier installation. Lock surrounds the electrical plug and protects against accidental reconnection Tough, lightweight, dielectric thermoplastic body withstands chemicals and performs effectively in extreme conditions For electrical plug sizes up to 3 in. (76 mm) in diameter x 6 in. (152 mm), with cord diameter up to 3/4 in. (19 mm); Fits most 110 and many 220 volt plugs Includes one lockout tagout device with high visibility safety labels (English, French & Spanish)