Brady 65966 480/600V clamp-on breaker lockouts for use on single-pole and internal trip multi-pole breakers. Clamp-on breaker lockouts are easy to install using patented thumbscrew design - no screwdrivers needed! Simply tighten lockout securely onto switch tongue, pull cover over thumbscrew and lock cover to prevent clamp from being loosened. Cleats are included for use with breakers with long, sliding switch throws. Color is red, material is rugged polypropylene and impact modified nylon.