Giantex Modern Ergonomic Mesh Medium Back Executive Computer Desk Task Office Chair Load Capacity: 264 LBS Tested For:120-150 Kg(264-330lbs) Dynamic State Seating Area Dimension: 18.5" X 17.7";Back Rest Height From Seat: 17.7";Height: Adjustable From 35.8" To 38.7" Height From Ground To Seating Area: 18.5" When Lowest Overall Dimension: 23.6" X 22.4" X 38.7"(When Adjusted To Highest Height)