High-back Executive Bungee Chair (Seat cushion not included) Adjustable seat-height mechanism powered by compressed air, 360 degree swivel, tilt tension and lock, and knee tilt (Allowing user to recline at more relaxed angles) Enhanced ergonomic structure delivers unmatched ventilation that improves blood circulation and minimizes fatigue Underlying bungee cords molds to your exact body shape like memory foam to eliminate pressure points reduce pressure point, back strain and maximize seating comfort Specifications: Overall Height 44 1/4" to 48, Seat Height 19 1/2 to 22 3/4, Seat Depth 19 1/2 and Total Width 22