Using your Hornit kids' helmet is easy. First, adjust the straps to fit your child's head snugly but comfortably. Make sure the helmet sits level on the head, covering the top and front. The integrated LED can be turned on by pressing the small button on the side. Use it when riding in low - light conditions like after school in winter. When it comes to maintenance, simply wipe the helmet with a damp cloth. Avoid using harsh chemicals as they may damage the helmet. Check the straps regularly for any signs of wear and tear. If you notice any issues, it's best to replace the helmet to ensure your child's safety.