CHAIR MASTER Black-Medium (20"-28") Height-360 degree lever adjustable-Round Stool for Labs, Exam Rooms, Doctor and Dentist offices, Garages, Home. EASY TO CLEAN! Standard Casters

Chair Master laboratory stools were designed for comfort and durability. Made with high quality, durable vinyl for ease of care and cleaning. Our stools were designed for laboratory, healthcare, and clean room environments but also suitable for school, home, office or an industrial setting. With a large 17.5" diameter seat, comfort molded foam, and robust 26" base, the chair offers comfort, stability and support for extended periods of usage. The 360-degree adjustment ring allows ease of operation of the pneumatic height adjustment from any position. Seat Height adjustments can range from 5", 8" and 10" of total adjustment, depending on each model, to accomodate a variety of body types and working environments. All of our chairs meets or exceeds ANSI/BIFMA furniture standards, Clean-room class 10,000 and CAL117 fire standards. Tested for 450 lbs of seating capacity. Please Note: Caution for use by individuals over 350 pounds should note that the seat may compress an additional 1"-2". Warning if casters are used, the chairs can roll away when being boarded, causing harm to the individual.