Using this building set is easy! First, find a clean and flat surface to start building your UNSC Hornet. You can follow the included instructions step - by - step. Once you've built the aircraft, you can place the micro action figures on the landing skids or in the cockpit. To pivot the engines, simply hold the Hornet in one hand and flip the switch with your thumb. When it comes to the micro action figures, you can swap their combat accessories to create different looks. As for maintenance, keep the bricks and pieces in a box or container to avoid losing them. If they get dirty, you can gently wash them with mild soap and water and let them dry completely before storing or using again. Remember, this set is for ages 8 and up, so make sure younger kids are supervised when playing with it.