ProHeal Wheelchair Seat Cushion Gel Infused Memory Foam - Orthopedic, Coccyx, Tailbone Support - High Resilience for Positioning and Stability Prevents Pressure Sores and Skin Damage -20" x 16" x 3"

Got this for my 96 year old grandmother and she's comfortable and happy in the chair. She has no complaints. Has not flattened out and has kept it's shape so far.

Dimensions are listed incorrectly, though the picture (if you look at strap placement in the picture), appears to indicate that you will be receiving a cushion that is measured according to length x width x debth. Buyer be ware. Instead what you receive is width x length x debth.

The wheelchair cushion is excellent. My husband is tall and so this took a lot of pressure off of his knees and his legs. And I also like the fact that the cover is removable and washable.