Three x 5mm and one x 12mm deep double socket extension frames. They look to be unused. Please check photos carefully.
This product would be ideal for electrical installations requiring a sturdy, six-way switch box with a footprint of only 10mm.
BG 818 10mm Double 2 Gang Spacer Frame Light Switch Socket Back Box Plate x 2
10mm Double 2 Gang Spacer Frame Light Switch Socket Back Box Plate
BG 818 10mm Double 2 Gang Spacer Frame Light Switch Socket Back Box Plate
BG 818 10mm Double 2 Gang Spacer Frame Light Switch Socket Back Box Plate x 5
BG 818 10mm Double 2 Gang Spacer Frame Light Switch Socket Back Box Plate x 10