Silhouet-Tone Round Air-Lift Stool with BackrestRound air lift stool with black base, 5 silent soft wheel casters, lumbar support, and adjustable height Round air lift stool with lumbar support to eliminate pain and enhance circulation. Five silent rolling casters on a large stable base make this stool a simple addition to your treatment room with easy access to supplies and a generous 3'' padding for maximized comfort and superior quality. The stool also features a hydraulic piston for smooth