This High Risk Chair Pressure Cushion is 40cm x 40cm x 10cm (16\" x 16\" x 4\") in size and is a very supportive pressure cushion designed for those who have a high risk of developing pressure ulcers.Ideal for use on standard chairs, wheelchairs and other seating situations, thisHigh Risk Chair Pressure Cushion measures 40cm x 40cm x 10cm in size, is very lightweight and is remarkably easy to transport. This cushion can be used as a comfort aid to provide additional user comfort as well as as a booster cushion if a higher seat level is required. Its dual layered construction features a base of high density polyurethane foam paired with temperature sensitive, visco elastic memory foam. Being very comfortable, relieving pressure and providing reliable support, this cushion\'s upper surface features geometrically contoured cubes of visco elastic memory foam. These modules of memory foam operate independently of one another, distributing the load whilst helping the skin to stay cool. This reduces the risk of pressure ulcers developing. The High Risk Chair Pressure Cushion is supplied fitted with a black Harley Dartex cover which is waterproof and made from a breathable nylon fabric. The comfortable multi stretch cover is fitted with a zip, and is suitable for washing or dry cleaning if required, ensuring best possible hygiene at all times. This waterproof High Risk Chair Pressure Cushion is also available in 11 other sizes and heights in this section of our shop.