I bought the rubber horseshoes set as a backup for my organization's Senior group. We usually play horseshoes outdoors with actual pits but could not due to rain. The set worked perfectly for them (ages 55-94!). Some of them actually preferred this set to normal horseshoes because it was lighter, and they could slide the horseshoes. They come with a really good traveling bag. I was able to fit 4 sets into a normal sized box.
You do have the option to play indoors or outdoors with the set. My only criticisms is that the rod/pole for the indoor set is too short, and the rubber mat could use some type of adhesive on the bottom. We ended up having to put tape down to keep it in place. Regardless, the seniors loved it, and it was very affordable.