●Lock out the plug to prevenet it from being inserted into a wall outlet, economy and safe
●Made of strong polypropylene and is designed for 220V and 550V electrical plugs
●Ideal for use when plug is not under exclusive control of the workers, even when worker leaves the workplace temporary, it is safe that no one will insert the plug to any outlet
●Simple usage, economy and safe
●220V/550V: 3-1/4"" x 3-1/4"" d 7"" wit 1"" (diameter hole)