So I have a set of 3 season patio furniture in a covered porch. The floor of the porch is lined with limestone, which is uneven in both height and size of the stone. I worked from home 2 days a week and often sat on the porch at my company laptop. Due to the pandemic I am working full time from home. Furniture legs are a rectangular tube, probably made of aluminum or steel. They have plastic legs. The larger chair I always use has a 2ft back that is completely worn down to where the metal scratched the flagstone. Looked, searched and found no swap legs. That is, until I found these. I ordered 10 packs and I'm thrilled I did. They are very easy to install. Perfect size and fit. Just a few taps with a rubber mallet (of course a hammer could have been used) and they snapped perfectly into place. No more grinding and incredibly loud noise of metal on stone. I love her and I highly recommend her.