Hubby put it together carefully  following  the directions.  However, the "lift" lever would not elevate the seat.  And, we were less than the given weight limit.  You could not sit on the chair and move it up.  You'd have to get off the chair,  and physically pull it up while holding the lever.  The seat would only go one way- straight down to it's  bottom most position.  There's  no way two people  could use this chair and make any height adjustments  while seated.  Sending it back!  Doesn't  function the way chairs  like this are supposed  to.