I guess I have a strange chair set. My wood floors scratch easily with wooden chairs. I used to use felt circles, but they wear out so quickly. Then I discovered a hard plastic cap that nailed into the chair legs, but eventually those, too, wear out and begin to scratch the floor. These have been wonderful, and the set contains so many pieces (32), that I will have many replacements. The interesting part is the size. I previously purchased a type of these in store. There were no sizes. Just a standard chair leg cover that fit the front two and the slightly larger back two chair legs on my set (I have 10 chairs). However, those packages contained only 8 caps for a total of 2 chairs for a total of $10. So...$50 to cover my ten chairs. I purchased a package at a time added to my strained grocery budget. After my next to last set, Walmart stopped carrying them! I needed to cover two more chairs. The problem was Walmart.com carried basically the same item, but it came in different sizes. I had to purchase two sizes-one (small) for the front two legs and the other size (medium) for the back two legs (we tried to make the first small set stretch to fit the medium sized back, but no-go, and the mediums were to large for the front legs, too). So, out of 32 in each set, I have 28 small caps left and 28 large caps left. The kind of strange thing was that one set came in a box, and one came in a bag. (Both sets were purchased from the same seller and same brand on the same page). I would have preferred they both came in boxes for more organized storage in my cupboard.