ACME Airmont Office Chair w/Lift, Onyx PU & Black, 21" x 17" x 36"~39"H, ()lbs. Features: - Armless Office Chair - High Backrest - Padded Seat & Back: Onyx PU - Swivel Seat with Adjustable Lift - Metal Frame with 4-Star Base and Caster Wheels Materials: Metal, Upholstered (Seat)