Posey Economy Floor Cushion, High Density, polyurethane foam. Folds in hald with convenient carry handle. Dimensions: Flat: 24"W x 72"L x 1½"T(61 cm x 183 cm x 4 cm) Folded: 24"W x 36"L x 3"T(61 cm x 91 cm x 8 cm)