Surrounds the valve operating handle, protects against accidental valve opening. Unique outward rotation allows for easier installation in confined space applications. Each size rotates into itself to fit effectively in safety tool boxes. Each size nests within the next longer size to save space in storage. Up to 4 workers can apply their personal safety locks. Complete with high visibility permanent safety labels. Withstands chemicals; Performs effectively in extreme conditions.SEPTLS470482. TLS470482. Master lock Master lock Safety Series Rotating Gate Valve Lockouts - 482.