Constructed from neoprene cells, which act to keep steady pressure in the cushion at all times and to maintain the softness of the cells in all environments. Not affected when autoclaved or if exposed to severe cold climates. The ischials are immersed fully in the cushion, giving an even distribution of pressure. Independent cells assure superior airflow between the cells via the ventilation channels. Useful for clients who are at high risk from pressure sores. Supplied with a cover and a hand pump. Size 406 x 457mm (16 x 18").