You can kneel on this waterproof 3' x 3' Heavy Duty Ground Tarp while making your sets. If you have excess dirt after your make your set just put it on the tarp and roll it up and move it away from your set. If you use this tarp your set will be scent free. It will fold up small for easy carrying. There is one Grommet attached in case you need to hang it up. Color: Green