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 and another for 240 and higher voltage circuit breakers. Innovative, patent-pending Grip Tight design effectively locks out circuit breakers. Adjust to breaker with simple thumb turn and then close clamping handle for a tight grip on the toggle. Compact device is easy to carry and easy to store. Circuit breaker lockout accepts all American Lock and Master Lock safety padlock shackles and lockout hasp diameters. Durable construction features powder-coat steel and reinforced polymer for operation in harsh environments.