Using your GP BoonBoom Vehicles set is easy. First, assemble all the 5 different vehicles carefully as per the instructions. Once assembled, you can attach them to the BoonBoomger robo to enhance its look. You can also use these vehicles in the BoonBoom changer for more fun. When handling the vehicles, be gentle as they are made of small parts. Avoid dropping them to prevent any breakage. For maintenance, keep them in a dry place away from direct sunlight. If they get dirty, you can use a soft, dry cloth to clean them.