RDD Lockits are now available for round wires and cables. Originally introduced for round cables ranging from 0.22 in. to 0.43 in., the family has been expanded by the addition of RDD101A, RDD401, and RDD501 to cover cables ranging from 0.125 in. to 0.6 in., and to accommodate a wider variety of UL cable-type designations. The Double D Lockit fits right into standard round or double 'D' holes in electrical cabinets, panels, or other enclosures, large and small.