Premium Quality- Made from extra soft plush and waterproof cloth at the back, the seat cusion is breathable, fine and smooth. Padded with premium thick pp cotton, springback well and very comfortable to touch. Dense stitches made the cushion pad very durable.Size - 42x40cm/16.5x15.7in.Fits for most adults body shape and and leave enough space for you to stretch. This elegant seat cushion is specifically design for waist-hip healthy building. The Tie strap desin keep the cushion in place and not easy yto slide.Sciatica Relief - This super soft chair pad provides excellent back support and relieves common symptoms caused by body weight pressing down on the lower tailbone area, reducing this pressure and help with sciatica relief, back pain, hemorrhoids,etcPromote Sitting Posture - For proper lumbar spine alignment. Increased blood flow to your legs. The seat pillow helps to relieve symptoms of sciatic nerve pain, low back, lumbar, arthritis, hip and spine, backaches, sores and other problems.Occasions - Perfect gift for sedentary people and seniors who are suffer from sciatica. Great cushion for desk chair at home, in the office, in the car, on stadium seat,and more. You may put it in the chair, on the garden bench, or lean against the wall. The foldable design is great for carrying and storage.