The Kieba Cool Gel Memory Foam Coccyx Seat Cushion is worth the price. This orthopedic superior grade memory foam cushion will add relief and comfort to any chair, bench, car seat, plane seat, wheelchair, or floor. With its cooling gel technology, it helps stabilize the temperature by reducing trapped body heat in the cushion.
The unique U-shaped contoured design provides extra support to the lower back, coccyx (tailbone), hip, spine, and sciatic areas. This is a large seat cushion that measures 14 x 18 inches, and comes with around 3 inches thick of memory foam! The ergonomic design promotes good posture, spine alignment, and healthy weight distribution for hours of comfortable sitting.
Someone said it can even help support someone who is about 250 pounds. It helps relieve the pain from sitting after dealing with a back injury. The cushion is large enough that will fit bodies of different sizes and the cushion is thick enough that it does not flatten or lose its firmness.