Electrical Box, Box Type Round Ceiling Pan, Number of Gangs 1, Bracket Type -, Capacity 3.9 cu in, Material Steel, Number of 1/2 In. Back Knockouts 1, Number of 1/2 In. Side Knockouts 0, Clamp Type KO Clamps, NMSC Clamps, Nominal Depth 1/2 in, Nominal Length 3 3/8 in, Nominal Width 3 3/8 in, Color Gray, Standards UL Listed. This item has been restricted from sale in the following state (s): []