Wire shelf covers are crystal clear and very sturdy, work with any brand of wire, converts wire shelves to solid shelves. They are made from PETG Material and are 1.5mm Thick. Any concern with burrs or rough edges or tearing something on the wire shelf - our clear covers solve this issue. They also provide a spill-safe surface so that no liquid will fall through the wire. Wire label holders can still be placed on the wire shelf and the cover's edge will fit over the front of the label holder.