Raceway, Device Mounting Bracket, Metallic, Height 4.76 In, Length 5.25 In, 4000 Series, Ivory, Material of Construction Steel, Standards UL, CSA, For Use With Hubbell(R) 4000 Series Raceway Metallic Surface Raceway SystemsHubbell HBL4750 SeriesUnits can be configured for 1 channel or as a 2-channel raceway that can be divided into a 50/50 or 70/30 split for max. capacity.2-pc. 1.75"H x 4.76"W x 120"L base