Uni Electrical Back Box, Color : White

Back boxes are the containers for the space behind electrical fitting such as power outlet sockets and light switches. They can be made from either metal or plastic. 
Sizes available are 1 gang (Single sized) or 2 gang (Double sized), with depths available being 25mm, 35mm or 47m. The Standard size is usually a 35 mm depth of back box and this will be suitable for most switches and sockets.