Quantum Wire Shelving includes 4 posts, 4 wire shelves and 4 packs of split sleeves(4 pairs each). Each shelf has a load capacity of 300 lb.. This simple snap together design assembles in minutes and minimizes dust accumulation and allows a free circulation of air, greater visibility of stored items and greater light penetration. Each Wire shelving can change as quickly as your needs. Posts have grooves at 1" intervals. A tapered split sleeve snaps together around each post. Tapered openings in the shelf corners slide over that tapered split sleeves providing a positive lock. Shelves are accessible from all sides making maximum use of storage space.