I will have to go out and take one. Mulch can get a bit messy, particularly as it breaks down. The semi-permeable, greenhouse flooring eliminates that completely. It also holds the mulch in place. It is easy to put down and inexpensive. When its time to replenish the cypress mulch, I just pull the flooring away, put down more mulch, and pull the flooring back over the mulch. The flooring just looks like black fabric. I know it is a polypropylene mesh, sort of like greenhouse shading material, but closer weaved. My flooring came from "Greenhouse Catalog" and the two 10x12' rolls cost $40 each. you can see the flooring on their website.