Ideal for clients who require bilateral upper torso support. Posey� Slim Supports customize a standard wheelchair to accommodate smaller clients or those who need additional lateral support. The 1in (2.5cm) wide bolsters reduce the width of a standard wheelchair by 2in (5.1cm) providing greater stability. Constructed of sturdy 1/4in (6.4mm) thick plywood and covered with foam and vinyl for extra comfort. Adjustable hook and loop straps for easy attachment. Sold in pairs.