Best used for valve lockout applications as part of a comprehensive OSHA compliant lockout tagout safety program Surrounds the valve operating handle to protect against accidental valve opening Unique, patented outward/inward rotation allows for easier installation; Tough, lightweight and dielectric Zenex thermoplastic body withstands chemicals and performs effectively in extreme conditions 1-1/16 in. (30 mm) depth and 3/4 in. (19 mm) wide opening that fits 1 in. (25 mm) to 3 in. (76 mm) diameter valve handles Includes one rotating gate valve lockout tagout device with high visibility safety labels (English, French & Spanish)