The ideal storage unit for any general storage area. The Starter Kit includes four shelves, four posts and shelf clips. Strong steel posts with open wire shelves helps to reduce dust accumulation. Each shelf holds up to 500-pound (with weight evenly distributed) and easily adjusts in 1-inch increments. Adjustable leveling feet with plastic caps to protect floors. Extra shelves available in packs of two. Durable Black powder coat finish resists wear. Assembles in minutes without tools.