"Secure breaker toggles to improve safety and help meet lockout\/tagout regulations. Securely disables electrical shut-offs by putting breaker toggles under lock and key Grip Tight design provides superior hold strength; thumb turn and clamp handle offer a custom, secure fit Slim profile allows side-by-side toggle lockout Durable powder-coated steel and reinforced polymer construction allow use in harsh environments Installs easily to instantly safeguard machinery and equipment Accepts one padlock or hasp (not included) This simple lockout\/tagout solution will help your facility meet life-saving regulations Fits the taller, wider toggles on most 240V, 277V and 600V breakers"