Metro MQL60-2S, MQL60-2S MetroMax Q stackable shelf ledge. Designed to help you make the most of your Metro shelving system, this shelf ledge is 2 in high and can be stacked with identical shelf ledges to contain larger items or taller stacks of product. This shelf ledge is easy to install on your shelving unit. It simply snaps into place and then snaps off when you need to rearrange your storage system or clean your shelving. Plus, it is corrosion-proof since it is made entirely with polymer and stainless steel, which means you can use it even in walk-ins or dishrooms.