Master Lock® Electrical Plug Lockout, Rotating, 1 Padlocks Maximum, 9/16 in Padlock Shackle Maximum Diameter, Red, For Use With: 120 V and 220 V Electrical Cord Plugs, Thermoplastic, 3-1/4 in H x 2-1/2 in W x 3/4 in D Dimensions. Master Lock® 487 Rotating Electrical Plug Lockout, 9/16 in Max dia Padlock Shackle, 1 Padlocks, Thermoplastic, Red