Kaleurrier Swivel Stool Chair Adjustable Height, Heavy Duty Hydraulic Rolling Metal Stool for Kitchen, Salon, Bar, Office, Massage (With Back Rest) (Black). 20.5"D x 20.5"W x 39.75H. Comfortable & durable - Stool chair with 13.5" diameter x 3" thick cushioned seat, brand new high-density sponge, high quality bonded leather upholstery, which is water and oil proof, easy to clean and maintain. Padded backrest allows for extra comfort. Convenient for multi-tasking work - a hard-working hydraulic stool, seat can be swivel 360-degree, and adjustable height from 22 to 30 inches. Easy ...