FeaturesProvides extra support in cars, around the home or on a wheelchair Eggcrate (convoluted) memory foam design for improved air circulationDesigned to fit most types of wheelchairConstructed from a 3 cm thick high density foam topped with a generous 4.5 cm memory foam topper With Black cotton twill coverBring a little comfort into your life with the Aidapt Deluxe Pressure Relief Orthopaedic Coccyx Cushion. These wheelchair cushions are designed to make your ride more comfortable and can also provide extra support and comfort in cars and homes. Featuring a black cotton twill cover with two pairs of straps to secure the cushion to a wheelchair or dining chairs, for example. The Deluxe Pressure Relief Orthopaedic Coccyx Cushion is constructed from a 3 cm thick high-density foam topped with a generous 4.5 cm memory foam topper for improved comfort and air circulation. The convoluted (egg-crate) memory foam helps to stimulate circulation while reducing pressure and discomfort. It also allows more air circulation, keeping you cool when using the cushion for longer periods.