Seat cushion: The inflatable triangular pillow is made of high quality materials, 0.5 mm flocking, soft, durable and can be cleaned directly or with a damp cloth. 【Fast Inflating & Deflation】Inflatable seat cushion, easy to inflate and deflate, just press the valve to deflate, our wedge pillow includes a pump. Seat cushion: can improve your body and have a better posture. It helps relieve muscle and joint pain, leaving you completely comfortable and relaxed, and can help support the body and achieve deeper, fuller postures. INFLATABLE TRIANGLE PILLOW - When deflated, folds for easy storage and carrying, perfect for heartburn, GERD and back, leg and knee support. Multifunctional: Comfortable multifunctional seat cushion that can be used as a leg pillow, lumbar pillow and pillow when sitting in bed, achieving optimal sleeping posture and relieving postoperative pain