Polyurethane seating ergonomically designed for comfort and durability. Available with standard synchronized seat tilt and ergonomic adjustable arms. Easy-to-use pneumatic seat height adjustment. Seating features a contoured waterfall seat that measures 18" wide x 17" deep x 1.5" thick. SPECIFICATIONS Standard Features Glides standard Easy-to-use pneumatic seat height adjustment Contoured waterfall seat measures 18” wide x 17” deep x 1.5” thick Adjustable contoured backseat measures 17” wide x 12 “ high x 1” thick 20” adjustable footring standard on -2 and -3 models Standard black polyurethane seat Meets flame retardant standards of FMVSS 302 Additional Features Seat tilt: optional (See PT models) Ergonomic arm rest (EAA): must be ordered at initial time of purchase Caster (-C): optional