Vogue Uph Desk Chair.Gas lift height adjustment handle. Adjustable seat height from floor: 19" - 23".Swivel and five-prong tilt base with rocker tension adjustment knob.Equipped with casters for convenient mobility. Never roll casters on unprotected hardwood or vinyl flooring.Upholstered with 100% Linen.Dimensions(inches): 39Hx25.25Dx19.75W