Retro Acrylic Hydraulic Lift Adjustable Height Swivel Office Desk Chair Clear (7023) Made By jersey seating&reg; Made of High Quality Acrylic Swivel Seat with Hydraulic Lift and rolling wheels Seat Height :14.5" - 17.5", Seat Depth: 18", Seat Width :14.5" Weight Limit 200 Pounds, These Fashion Chic Acrylic chairs are not designed for long time sitting or reclining.