Giantex Modern PU Leather Ergonomic Mid Back Office Chair Executive Computer Desk (Mid Back, Black) Nice Design: Modern Style ,Beatiful Generous And Strong Practicability ,This Kind Of Chair Will Keep You Comfortable And Stable All Day. Adjustable Chair: Height Adjusted By Pneumatic Gas Lift ,Adjustable seat height: 17.7"-21.6",360 Degree Swivel Wheel And Chair Can Be More Flexible In The Working Space. Ergonomic Posture Support: Load capacity: 264 LBS, Tested For:120-150 Kg(264-330lbs) Dynamic State Overall dimension: Overall dimension: 22" x 22.8" x35.4"(At its highest point), Backrest size:17.7" x 16.9",Seat size:19.6"(W) x 16.5"(D),Adjustable seat height: 17.7"-21.6" Package includes:1 x office chair, Easy assemble is required.