DMI Egg Crate Sculpted Foam Chair Cushion, Seat Cushion for Car, Office Chair or Wheelchair Cushion to Relieve Back, Tail Bone Pain, Sciatica, 18x16x4, Without Back

This convoluted (egg crate) Foam Seat Cushion with Back will add comfort to your chair and relieve pain when sitting for long periods of time. If you use a wheelchair or need to sit for extended periods in a regular chair, this soft cushion can give you more comfort. Made of medical grade foam, this cushion helps to better distribute your weight and promote better air circulation. It can help to prevent or heal pressure sores.