* You can also use these with a 2-way or 3-way solenoid if you are using gravity/weight to push the cylinder back down. When the solenoid is triggered, air is applied through the bottom hole - forcing rod up very quickly.
* Examples: Lid Opener Pop-up props Moving Skeletons or Zombies Door Banger Coffin Lid Banger Barrel Lid Banger Monster in a Box Trash Can Trauma Bore