The Compass Linear Graphic Fixing offers a simple way to create seamless graphic wall displays on Linear systems using acrylic, foamed PVC or other substrates up to 12mm thick. The versatile gadget slides into Linear post channels and fixes easily with 5mm Allen key screws. It holds up to 4 panels in place and each arm can be unscrewed if not needed, so is great for handling corner pieces. A 10mm aperture is needed in the substrate for each arm. The Compass Linear Graphic Fixing is made from a zinc alloy casting with formed steel arms and finished in silver satin. 1 year guarantee.