Adjustable headrest: Large and comfortable, moves up and down. Home office chair supports your head and neck when leaning back. Comfortable: PC chair features a padded seat, high back, swivel base and five castor wheels. Wide seat for plenty of sitting room. 116-126cm adjustable height: Set to a comfortable desk-working level for you. Mesh on back of desk chair to keep cool. 360° swivel base: Move side-to-side on mesh office chair, with five wheels to move easily. Dimensions: 116-126H x 64W x 58Dcm. Seat: 45-55H x 48W x 48Dcm. Maximum load 120kg. Assembly required. It's BS5852 qualified.