The large royal size around the lid makes you feel like a king. Pull it down to fit your waist. Can be used for many purposes such as chairs, sofas, cars, etc. The combination of tiny beads in diameter of 0.04 inch (1 mm) and stretchy fabric is a major feature. The fine foam beads move freely inside the knit fabric and fill the gap between the chair and the body for a perfect fit. Washable