"This miniature circuit breaker lockout device is the wide pin-out model that is easy to install with the aid of a push button - no other tools required. It provides a safe and effective method for locking out miniature circuit breakers with superior chemical resistance.Type = Circuit Breaker LockoutMaterial = Glass Fibre Reinforced Plastic, Stainless SteelNumber of Locks = 1Lock Shackle Maximum Diameter = 7mm"