A quality manufacturer provide the wire shelf ledges available to suit all shelf sizes. Ledges are designed to easily clamp on to shelf frame. Two sizes high: 100mm high and 280 high.

Surface Finish: Chrome Plating / Zinc Plating / Powder Coating / Stainless
Package: standard export carton.
Avaliable Size List : http://www.wire-racking.net/web/fckimages/file/1364788275738626807.pdf

Each shelving ledge has at least three points of contact to help it remain securely affixed to your shelf. The two ends fit around the posts while the bottom has an angled foot to slide over the truss.