2 x Acrylic Hydraulic Lift Adjustable Counter Bar Stool Dining Chair White -Pack of 2 (2012) Adjustable Height with hydraulic lift. Back Of Seat Height :11" Base Size :16.3" Across Height :31.8" - 39.4" Seat Depth:19" Seat Width :15.5 Weight Limit: 6' 280 Pounds