Upgraded Gel Seat CushionGel material doesn't irritate the skinDouble-layer thickened honeycomb structureenough to support the weight of the body, soft and without losing support force.Gel Seat Cushion Size:16.5x14.5x1.5in(42x37x3.8cm) Relieve back painSitting for a long time and incorrectly sitting posture often makes our backs and coccyx feel soreergonomic design can provide maximum support and comfort ,and helps straighten and correct your posture. Protects you from sitting wrong in harmful positions.Pressure relief for back pain, coccyx,tailbone,hip,lower back pain,spine. Comfy Cooling Cushion: Gel Seat Cushion has 500 piece honeycomb design,free-flowing air channels will prevent seat sweat and stay comfort dry cooling instead of heating where youre sitting,it is more breathable than conventional cushion,Comes with a black cloth cover, it is cooler when the cover is removed in summer, and warmer when the cover is put on in winter. Not Easily Deformed: The gel cushion has cushioning property that it restores to its original shape as soon as it is stretched and squeezed, and has superior durability than conventional cushion. And it is small enough to carry to the airplane for long flights It can be used in various places such as the driver's seat of a car, a dining chair at homeoffice, wheelchair and movie theater. 360 Day Quality Guarantee : You can buy this chair cushion with confidence, Because Customers satisfaction is our top priority. Money back guarantee if you are not satisfied.If you are completely not satisfied with the product for any reasonplease feel free to email us.