Size: 45*45cm, Material: Cotton or Satin. Filling: non-woven fabric+fiberfill, Weight: 400-500g/p. Packing: Vacuum+PVC bag Back cushion we use for sofa, bed and chair. The size has 40*40cm, 45*45cm,50*50cm, 65*65cm, square or rectangle, round is popular. Filling has Fiber and Elastic spun cotton, with non-woven fabric cover. Vacuum packingDesign ChoiceABCDE Cotton and Satin Back cushion