made from Aluminium , ligtht weight , smooth appearance and good performance Item : 4" entry panelMaterial : AluminiumDescription : 4 Port , 2X2 , 400mm length X 400 width , hardware for mounting and caps included.we can provide 1X1 , 1X2 , 1X3 , 1X4 , 2X2 , 2X3 , 2X4 , 3X4 and 4X4 4" cable entry