Hyper Tough Steel 5-Tier Heavy Duty metal storage shelf unit is ideal for home and commercial use. It has strong and durable welded wire construction. Epoxy powder coating finish in black color. It has open wire design allows air circulation and reduces dust build-up. NSF certified for dry environment and comes with a 5-year limited warranty. Shelves can be adjusted in one-inch increments. Each shelf can hold up to 800 lbs evenly distributed when assembled with feet levelers. Total unit capacity is 4000 lbs. It is designed for adult suse. This wire shelving system is perfect for homes, offices, warehouses, restaurants and any other places you need to organize.