1.Lumbar Cushion 2.memory pillow 3.massage pillow 4.sponge pillow Lumbar Cushion,memory pillow,massage pillow,sponge pillow XY-690Foam:molded memory foam Help you sit comfortably,even for prolonged periods of time. Relieve back pain by reducing pressure on spine and coccyx. Fit most car seats,office chairs or easy chairs. massage cushion