HEALTH LINE MASSAGE PRODUCTS BIFMA Standard Set of 2 PU Leather Hydraulic Swivel Gas Lift bar Stool 30inches with Back 350 lbs Weight Capacity White Chairs Salon Spa Beauty Tattoo Height Adjustable Set up Dimension: 21.5" W x 18.5" D x 27.6"-35.8"H; Seat width: 11.8"; Seat depth: 12.6"; Seat height: 24"-30"; Seat back height: 3.5"; Chrome base diameter:15.2" Round seat pad & fan-shaped mini backrest design, more comfortable and beautiful than other shape stool. 3 inches thick pad. Polyurethane faux leather seat upholstery, water-proof & oil proof, easy to clean, makes the chair become more durable. Sleek chrome metal feet rest, nice shape, suitable size, which meets ergonomics, providing a best place for your feet when seating.  15.2 inches sleek chrome metal base, makes the stool stand sturdy . Meet BIFMA standard cylinder, much safer than others. ISO 9001: 2000 standard certified manufacturer. BIFMA sponsors the development of safety and performance standards, provides industry statistics and forecasts, advocates for regulatory conditions that foster value and innovation, and serves as a forum for member cooperation and collaboration. Durable rubber ring bottom design, makes the base become more stable, and prevents your luxurious wood floor from scratching. Max weight capacity: 330lbs