The Master Lock No. S866 Retractable Cable Lockout Device, ideal for electrical lockouts, features a tough, flexible nylon core cable with a yellow plastic coating. Designed with a built-in Cable Management System, the take-up reel and internal ratcheting mechanism only allow for tension to be increased on the cable - even after safety padlocks are applied. The contoured thermoplastic cable housing withstands harsh environments and allows for the stacking and transportation of multiple devices. Includes high-visibility, write-on safety labels in English, Spanish and French.