The Medstorm Stair Chair features four 5″ standing wheels for enhanced ergonomic mobility with rear-wheel locks to ensure easy use and safety. This chair is clearly designed with the transporter in mind.Composed of high grade aluminum this Medstorm®chair chasis extrudes squarely to strengthen the care and support of irregular weight disbursement by offering more PSI on each connection joint. Weight 19LB. Height 36 Inches Width 21 Inches Capacity 350LB. Easy To Clean,5″ Stationary Wheels-Rear Wheel Locks Please Call For Pricing! New With Warranty!