Alera Eikon Series Stacking Mesh Guest Chair, 20.86" x 24.01" x 33.07", Black Seat, Black Back, Black Base, 2/CartonErgonomically contoured back encourages ideal back posture.Durable steel frame with textured matte black finish.Stacks up to five high. 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)