Wiremold® Poke-Through Assembled Unit, Multi-Service Non-Metallic, Series: RC Series, 4 in, 1/2 to 3/4 in Knockout, 2 Gangs, 24.5 cu-in, Flush Device Type, 16-3/8 in Length, 8-1/4 in Width, 16.68 in D, For Use With: On Tile or Carpet Floor, 8-1/4 in Cover, Aluminum Cover, Steel, Black