This 10" High Rise Bed Frame Glides for Under Bed Storage Set of 6 has Bed Rising Glides that increase the overall height of your bedding to approximately 10". Turn wasted space under your bed into valuable storage space. Just think of all the items you could store under your bed with the increased storage space: Exercise Equipment, Out-of-Season Decorations, Shoes, Clothing, Toys, and more. The glide is manufactured of a durable polypropylene plastic measuring 3-1/2" across its base. Each set of 1 includes a steel stem glide extension and plastic leg insert for the steel stem (if needed). These glides replace your current glide or wheels. These bed risers are designed to insert into the stem that the current feet (or wheels) are using. A very affordable and safe way to give your bed frame a little extra height.