Before riding your Jiffi J-40 for the first time, make sure that all screws on the scooter are securely tightened. See the screw diagram included in the box for screw locations. The Jiffi J-40 scooter is designed for ages 12 and up. Do not allow small children to ride it. Do not store your Jiffi J-40 scooter where young children have access to it. Wear shoes when riding your Jiffi J-40 scooter. Obey traffic signals and signs. Do not ride in traffic with cars and other motor vehicles.