Slip Skid Resistant PVC Back | Latex: Yes | Colorfast | Stain Resistant | Easy to Clean Low Pile | Indoor Outdoor UsePile materials : Olefin / Polypropylene | Pile Height : 0.27 inch (Premium Entry Collection)Design : Solid Stripes | Color : Grey-Navy-Brown0.27 inch Low Pile Height For Easy Vacuuming and Cleaning | Thin Design Fits Under Most Doors | Commercial Grade | Perfect For Heavy Traffic Areas
I am not an expert on grading, nor do I claim to be.