Alera Interval Series Swivel/tilt Mesh Chair, Supports Up To 275 Lb, 18.3" To 23.42" Seat Height, BlackDurable premium fabric upholstery designed to resist abrasions and fading.Waterfall seat edge helps relieve pressure points at the back of the knee.Five-star base with casters for easy mobility. WARNING: This product can expose you to Di(2-ethylhexyl)phthalate (DEHP), which is known to the State of California to cause Cancer and Birth Defect/Reproductive Harm. For more information go to www.P65Warnings.ca.gov. - Cancer:Di(2-ethylhexyl)phthalate (DEHP);;Birth Defect/Reproductive Harm:Di(2-ethylhexyl)phthalate (DEHP)