This is the Coleman tent inner mat 300, model "170-7037". I've forgotten when I purchased it. My family used it for several years, and then it was stored at home. I couldn't take a picture of it spread out indoors, but as far as I could see, there were no noticeable stains or dirt. I sun-dried it before storing it, so it seems there's no mold, even after long-term storage. However, there's a definite possibility I missed something. Please be aware that this is a used item that has been stored for a long time, so it is not a perfect product. ☆Features☆ This single mat prevents moisture and discomfort from the ground inside the tent. It's a perfect fit for Coleman tents with a size of 300 x 300 cm. It comes with straps for convenient folding. ☆Specifications☆ ・Material: (Surface) Nylon, (Lining) PVC, (Filling) Sponge ・Usage Size: Approximately 295 x 295 cm ・Storage Size: Approximately 22 cm diameter x 43 cm ・Weight: 3.5 kg ・Color: Green Thank you.