Chrome Base One touch pneumatic seat height adjustment 360 degree Swivel Function Floor Protector White Round Seat Minimal and Easy assembly required Specifications: Dimensions CM Inches Seat Height 64-85 25.2 - 33.5 Overall Height 87-108 34.3 - 42.5 External Seat Width 52 20.5 Backrest Height 23 9.1 Overall Stool Depth 48 18.9 Width Of Footrest 31 12.2 Base Diameter 38 15.0 Dimensions CM Inches Seat Height 64-85 25.2 - 33.5 Overall Height 87-108 34.3 - 42.5 External Seat Width 52 20.5 Backrest Height 23 9.1 Overall Stool Depth 48 18.9 Width Of Footrest 31 12.2 Base Diameter 38 15.0