Will the Trailer Valet work on dirt, gravel and grass surfaces?

Will the Trailer Valet work on dirt, gravel and grass surfaces?

The MV can only operate on tightly packed grass with hard soil or tightly packed gravel. We do not recommend using any of our models on other soft or loose surfaces. The Trailer Valet will not move on sandy, muddy, rocky, or severely bumpy ground. If you are unsure whether or not your surface is tightly packed enough, send a clear picture of the surface including your trailer specs to our support email.