Genuine Quantum modular wire systems offer a unique combination of shelf and post sizes in a variety of finishes to compliment any application. The split sleeve and grooved numbered posts allow for easy and quick assembly. The all welded shelf construction is supported with architectural wire trusses to provide between 600 lbs and 800 lbs capacity per shelf. Additional add-on kit allows you to expand your starter kit by sharing a set of posts. Configuration options include straight line, back to back and right angles (L-shape). Add-on kits come complete with 2 posts, 4 shelves and 8 S-hooks. NSF approved. 1 Year warranty agianst defects.