Signatupr Item Features and Purposes: These cushions are made of all cotton, they are heavy enough to stick tightly with the frames. Color: Purple. The bottom of cushion has 4 ties used to fix the cushion with the frame. Fabric material: 100 % Polyester fabric. Cushion Dimensions: 3"(thickness) x 54" Diameter (54" x 54"). Cushion Construction:The mattress is filled with 95% cotton battings and wrapped with 5% fiber battings . Caring instructions: Only spot cleaned with a damp cloth. The outside cover is fixed, it is not removable for washing. You may leave the cushion under the sunny day for drying and airing. Or, you may use a hair dryer (lower warm selection not burning the fabric material) for drying if necessary.