Ritter 278 Air Lift Procedure StoolRitter stools by Midmark provide optimal comfort, support and stability. The star shaped base design allows for closer access to the patient and stable, easy maneuverability. The 278 has all of the features of our best selling Classic Series stools optimized with features to support clinical procedures. Stability Polished chrome five leg caster base and hood Comfort Armrest designed to stabilize the clinicians arm during delicate procedures Simplicity