Joni High Back Mesh Office Chair with Headrest in BlackDESCRIPTION The Joni office chair features mesh backrest and fabric upholstered seat with tilt mechanism, which allows seat and back to move together. The chair has strong nylon star base. The chair swivels 360 degrees, seat height can be adjusted to suit individual needs (seat to floor height ranges from 46 to 54 cm). Chair size: W 68. 5 x D 61 x H 113 ~ 121 cm. Sizes: Seat height: 46 54 cm. Seat width: 49 cm. Seat depth: 48 cm. Starbase diameter: 64