The Master Lock No. 487 Rotating Electrical Plug Lockout Device is a reliable solution to prevent accidental reconnections during maintenance or repair. Designed to enclose electrical plugs securely, it is compatible with plugs up to 2-1/4in (57mm) in diameter and 3-1/4in (82mm) in length, with cords up to 3/4in (19mm) in diameter. The patented rotating design ensures hassle-free installation in confined spaces. Crafted from durable Zenex™ Thermoplastic, this device is lightweight, chemical-resistant, and built to perform in extreme environments. High-visibility safety labels provide clear identification for added safety compliance.