Alera Ravino Big/tall High-Back Bonded Leather Chair, Headrest, Supports 450 Lb, 20.07" To 23.74" Seat, Black, Chrome BaseChrome-plated, five-star base with nylon casters for easy mobility.Casters supplied with this chair are not suitable for all floor types.Alternative casters are available to meet your specific needs. 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)