You’ll enjoy the comfort and convenience provided by Ikohe’s Adjustable Height Swivel Chair. The black fabric covered seat and backrest rest upon a tubular steel column supported by the 5 heavy duty casters which provide stability. The adjustable seat is 18” wide and is vertically adjustable from 16 ½ “ to 21”. You’ll like the price too. Overall dimensions are 21.6” wide x 20.5” deep x 33” high maximum. Made in Taiwan.