Master Lock 481 Lockout Tagout Rotating Gate Valve Lockout features a 1-1/2 in. (38 mm) depth and 1-1/2 in. (38 mm) stem opening for 2 in. (51 mm) to 5 in. (127 mm) diameter valve handles to surround the valve operating handle to protect against accidental valve opening. The unique, patented rotating design allows for easier installation in confined space applications. Tough, lightweight, dielectric Zenez™ Thermoplastic body withstands chemicals and performs effectively in extreme conditions. Includes high-visibility permanent safety labels.