Jay 3 cushion 40cm x 40cm (approx 16 incbes x 16 inches). In good condition as has only been used for a short time but no longer suitable for needs. Features: Precontoured, carvable, closed cell foam base with Optiwell™ technology i.e. anthropometrically designed pelvic loading area (PLA) Optiwell Technology The Choice of Fluid or Air PLA inserts available to purchase from Sunrise Medical Comfort layer is integral to cover Modification possibilities The J3 features a contoured foam base constructed from closed cell foam. Additionally, an extensive selection of positioning components are available. The J3 provides exceptional lateral and forward stability for individuals with changing needs or unique postures.