Using this tote bag is a breeze. First, open the bag and gently place your four LED PAR lights inside. Make sure they're well - arranged to prevent any movement during transport. When you're ready to move, simply grab the handle and roll it along using the wheels. As for maintenance, keep it in a dry place when not in use. Avoid overloading the bag as it might damage the wheels. If it gets dirty, use a soft, damp cloth to clean the exterior. That's all there is to it, and you'll have this bag serving you well for a long time.