Q: how to build a chair?
A: Remove all parts from the carton and separate them into part number groups as indicated in the parts list.   To begin assembly, place the 5-star base   upside down and insert casters  into the bottom of base.   Turn the base   right side up on the floor and insert the cylinder  into the center hole on the base. Place the telescoping cover  over the the cylinder  and rest it on the base.   Attach the seat plate  to the bottom of the seat cushion (with front of seat plate facing the front of the  seat cushion) by using 15/8" screws  into the front holes of the seat plate  and 7/8" screws  into the  rear holes of the seat plate and tighten the screws.   Align the back cushion  with the seat cushion  by positioning the back support plate  over the seat  plate with 11/4" screws. Do not tighten the screws completely.   Attach the arms  respectively on each side onto the bottom of the seat cushion  and the sides  of back cushion  by using 11/2" screws. Tighten all the screws. Remember to tighten the screws on the  back support plate.   Place the plastic caps  into the two arm holes on each arm.   Place the assembled chair on top of the cylinder and press down until fully engaged.   Periodically (every 90 days) make sure that the screws are still fully tightened.