Conductive ESD Chrome Wire Shelving Add-On System includes 4 wire shelves each with up to 800 lb. shelf capacity. This ESD shelving add-on kit is used to extend existing shelving and is ideal for use with conductive containers and esd bins to protect your electronic components. Additional shelves, aluminum split sleeves and s-hooks may be added to the unit, both are sold separately. Mobilize starter shelving unit using optional conductive mobile kit, WR-00CO. Includes 2- 74" chrome posts, 4- chrome wire shelves, 8- s-hooks, aluminum split sleeves and a drag chain for grounding.