1Nylon Material: Crafted with reinforced nylon material, this circuit breaker lockout has excellent insulation, erosion resistance, temperature resistance (50177), and no deformation. With copper cr plated screw, suitable for various work environments. 2Easy Installation: Comes with fastening screw, the circuit breaker lock allows for convenient locking without the need for additional tools. The enlarged screw diameter ensures a comfortable and effortless use, making it an ideal choice for quick and convenient installation. 3Wide Compatibility: With professional design, this lock perfectly fits a wide range of oversized molded case circuit breakers, including those with exceptionally long closing stroke, as well as special push button breakers, ensures comprehensive guard for workers during equipment maintenance. 4Secure and Reliable: Prioritizing industrial security, this circuit breaker lockout device serves as a reliable lockout solution for large scale electrical equipment such as air switches and handle operated circuit breakers, creating a safer work environment. 5Compact Design: Featuring a compact design that accommodates padlocks with diameter 7mm, this lockout device optimizes space utilization while ensuring secure locking. Its seamless integration into various breaker system, and enhances overall workplace security. 1 x Large Circuit BreakerLockout