These bases are great for indoor/ outdoor. I placed one at the front entry and one inside the back door entry. Unlike a rug, the inserts absorb the water and still look great. No footprints, easy to clean with dish soap, and vacuum nicely. Also, I use the fatigue style base for under the kitchen sink, etc and are only slightly worn after years of use. The flexibility of changing inserts out for occasions or decor style is a clever and inexpensive idea! These are a must have, well constructed and durable.