Metal Easy to Assemble: Foldable design with no complicated setupready to use right out of the box Storage Capacity: Size: 12 IN , with extra-large capacity that fits one quilt, three winter coats, and 25 shirts 360° Rotation: Four quiet, smooth 360° swivel wheels make it easy to pull out the under bed storage Durable and Sturdy: Made from metal with a load capacity of up to 70 lbs, this underbed shoe storage lasts twice as long as Oxford fabric options Versatile Use: Perfect for storing clothes, toys, books, shoes, blankets, and more