Comfort Products 60-6814 Stress-Reducing MassageTask Chair, Black - Soft bonded leather upholstery with matching vinyl zones, Molded PP arms with nylon base, Swivel, pneumatic lift height adjust, 2 vibration massage motors relax the back, Uses 4 AA batteries (not included), Overall: 23½"W x 24¼"D x 35¼ - 39¼"H, Seat cushion: 18¾"W x 19¾D x 4"T, Back cushion: 17"W x 17¼"H x 4"T, Gross wgt. (28 lbs) Net wgt. (24 lbs), CA-117 foam, Meets or exceeds BIFMA standards, Weight capacity: 225 lbs.