"These Origami folding steel shelves are truly magical Using principles from the ancient Japanese art of Origami paper folding, they open in a mere 20 seconds, then fold flat again just as quickly for storage. No tools required Each shelf holds 250 lbs. Steel with pewter powder-coat finish. Great for the office, garage or warehouse storage. Shelves qty. 4, Shelf Capacity lbs. 250, Shelf Dimensions W x D in. 36 x 18, Color Pewter, Height in. 60, Posts Qty. 4. No tools required Opens and folds in 20 seconds Pewter finish gives shelves a contemporary look Made of durable steel Holds 250 lbs. per shelf"