I sent an inquiry a few days ago to the company, and have not received a response. I bought a Raintrain from Do It Best in Champaign. It worked for a week, then ran over the stop block and stopped at a rock and kept running. Now it will barely move, and there is a clicking sound when it attempts to move. I assume a nylon gear was stripped when the stop ramp did not work. I want a replacement. I'm waiting for their response after a second inquiry today.