Flash Furniture Mid-Back Purple Mesh Swivel Task Chair with Arms Contemporary Task Chair Mid-Back Design. Arm Height From Floor : 23.5 - 27.5 H Inch Ventilated Mesh Back Material Accordion Back Cover. Arm Height From Seat: 8.5 H Inch Padded Purple Mesh Upholstered Seat Swivel Seat Pneumatic Seat Height Adjustment Nylon Arms Heavy Duty Nylon Base Dual Wheel Casters