Thrion MBEB235 2 Gang Flush Steel Galvanised Extension Box 35mm\r\n- 2 Gang 35mm Steel Galvanised Box with knockouts is ideal for use with the installation of Switches and Sockets.- Complete with an Earth Terminal and adjustable Fixing Lug. - Galvanised steel construction and solid brass earth screw. - Incorporates multiple cable entry knockouts. - This is the Galvanised Steel 2 Gang 35mm Flush Metal Knockout Back Box.\r\nThe Thrion MBEB235 2 Gang - 35mm flush steel extension box is flush mounted and would be used on single switches such as a 2 gang 1-way switch, as it is the shallowest flush-mounted box. The pack contains 2 gang pattress boxes and has hassle-free, easy-to-open polyurethane bag packaging. It requires standard installation tools and should only be installed by a competent, qualified person. It conforms to BS standard 5733.\r\nFeatures:\r\n- Brand: Thrion.- Size: 35mm.- Individually packed for protection.- Conforms to electrical standards.- Galvanised finish.- Ideal for use where extra depth is required between the backbox and faceplate.- Flushed Mounted.- Double Gang.\r\nDimensions: (W)253mm x(H)194 x (D)35mm.