The Master Lock No. 480 Rotating Gate Valve Lockout Device features a 30mm depth and 19mm stem opening for 25mm to 76mm 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 Zenex™ Thermoplastic body withstands chemicals and performs effectively in extreme conditions. Includes high-visibility permanent safety labels.