Studio Designs Studio Stool in Silver with Chrome 13179 Overall Dimensions: 15.25"W x 15.25"D x 18.5" - 23.5"H Seat Diameter: 12.75" Adjustable Seat Height from 18.5" - 23.5" High Five Star Chrome Base with 2" Covered Casters Pneumatic Gas Lift, Chrome Foot Ring Overall Dimensions: 15.25"W x 15.25"D x 18.5" - 23.5"H Seat Diameter: 12.75" Adjustable Seat Height from 18.5" - 23.5" High Five Star Chrome Base with 2" Covered Casters Pneumatic Gas Lift, Chrome Foot Ring