Designed according to solid geometry three-dimensional technology, the hexagonal honeycomb provides softness and comfort without losing support. Combined with the medical application experience effect, effectively relieve pain in the lower back, sciatic nerve, tailbone pain relief, and buttocks. It is helpful to your health and it's a trustworthy seat cushion. Some products include a Plush Cover as a Gift, you can get warmth while enjoying comfort . Product size: 16.514.51.8inch, thickened, solve your trouble of sitting to the end when you sit on the gel seat cushion. Even if your weight is 500 Ibs, the cushion is thick enough to support your body. Gel seat cushions are manufactured from renewable resources, avoid pollution and save energy resources. - EONLION Ultra Thick Orthopaedic Gel Cushion Office Car Seat Pad in Purple