21" x 54" x 63" Conductive ESD Wire Shelves Heavy-duty Chrome Shelving unit allows up to 800 lb. shelf capacity. ESD Wire Shelving Unit includes 4 posts, 5 wire shelves and a drag chain. Additional wire shelves and plastic conductive split sleeves may be purchased separately. Mobilize starter shelving unit using optional mobile kit WR-00H or conductive mobile kit, WR-00CO. Includes 4- 63" Posts and 5- 21" x 54" Chrome Wire Shelves with plastic conductive split sleeves and a drag chain.