Requirements:
* eliminate air bubbles in the Gear Diff or Shock Absorber human body.
* 1:10 or 1:8 Shock Absorber are appropriate.
* Accelerate the tire additive therapy procedure for 1:12th, 1:10 foam tire or plastic tire.
* With energy knob to alter the vacuum cleaner stress inside the cylinder container.
* With atmosphere valve change to release the air force.
* Support 1s or 2s battery.