Circuit breaker lockout set fits virtually all circuit breakers you will find in a lockout situation. Set of two breaker lockouts includes one for 120 volt & another for 240 & higher voltage circuit breakers. Innovative, patent-pending Grip Tight design effectively locks out circuit breakers. Adjust to breaker with simple thumb turn & then close clamping handle for a tight grip on the toggle. Compact device is easy to carry & easy to store. Circuit breaker lockout accepts all American Lock & Master Lock safety padlock shackles & lockout hasp diameters. Durable construction features powder-coat steel & reinforced polymer for operation in harsh environments.