LAPDOG Package contents Install Instruction MBx25L X 3 M8x12L X 5 Size comparison chart M6x20L X 3 MSx20L X 3 Assembly Instruction Lock Tum knob clockwise to tighten gas cylinder. (‘swaps (Step 8 Lift lever and adjust platform to preferred height, then \_release lever. Tum knob counter-clockwise to release gas cylinder.