GypLyner Universal Metal Stud Walls require the use of the GL2 GypLyner Fixing Bracket. The GL2 bracket keeps the GL1 GypLyner Lining Channel in place inside the stud partition wall by connecting it to brick or ceiling. They are shipped flat, but they are made of malleable galvanised mild steel. This means the brackets can be bent to encase the GL1 GypLyner Lining Channel to provide a more stable grip.