This is a combination of a slim, shaped foam cushion base and a large gel sac covering the sacral area, increasing even weight distribution and immersion of the ischial tuberosities. This design delivers a high degree of protection for people who are at High Risk of developing pressure ulcers. This slim cushion format is ideal for both chair and wheelchair use.Height of image is 7.8cmWeight of cushion is 1.82kgMaximum weight of user is 140kgCleans at 80 degrees in a washer