65688 is a snap-on circuit breaker lockout device designed for 120V circuit breaker switches that have holes in the switch tongue. The device features a Nylon 66 body with stainless steel dowel pins for added security, and dual cavities to accommodate different sized switch tongues. It accepts lock shackles up to 9/32" (7.14mm) in diameter and carries a UL 94-HB rating for plastic components. The operating temperature range is -20°C to 120°C (-4°F to 250°F). This lockout device is compatible with various circuit breaker manufacturers including Bryant, Challenger, Cutler Hammer, General Electric, Siemens, Square, and Westinghouse, making it ideal for lockout/tagout safety procedures in industrial and commercial electrical applications.