PART LIST Glide or Caster Base Seat Post Mechanism Seat Backrest Post + L ASSEMBLY INSTRUCTION al com Remove all items from the carton . Verify all pieces before assembly. 15 Mechanism Screw Steel Plate Base 1 Mechanism Bellow Backrest Height Adj. Knob STEP 1. STEP Z. SIX MONTHS, PLEASE MAKE. AND KNOTS ARE FULLY TIGHTENED TO ENSURE ยง1) STABILITY.