HSS 3 Tier Wire Shelf Unit is ideal for home and commercial use. It has strong and durable welded wire construction in black color. Open wire design allows air circulation and reduces dust build-up. It is NSF certified for dry environment storage. Easy assembly with no tools required. Shelves can be adjusted in 1 inch increments. Each shelf can hold up to 350 lbs evenly distributed. Includes adjustable foot leveler to ensure stability on uneven surfaces. The included plastic shelf liners offer additional stability for smaller or delicate items. This product is designed to be used by adult. This wire shelving system is perfect for homes, offices, restaurants and any other places you need to organize.