Designed to fit neatly within the majority of wheelchairs, this comfortable cushion has a foam pad at the base and gel filled nodules on the surface for additional comfort and air circulation. The underside has a waterproof backing to protect the chair. Fitted with two ties to secure the cushion to the wheelchair and prevent movement. Width 457mm (18'). Depth 394mm (151/2'). Height 25mm (1'). Weight 1.4kg.