Like many people, I prefer not to have to buy different filters to fit the different filter sizes for the lenses I own. That can get pretty expensive for high quality filters, like circular polarizers or neutral density filters. Since my lens that uses the largest diameter filters is 82mm, I use step rings to adapt them to my different lenses. I already had a 77mm to 82mm and a 72mm to 82mm step ring, the only one I was missing was a 67mm to 82mm step ring. When I saw the listing for this set, I ordered it right away. I was so pleased to see the low price that I didn't pay attention to the fact that it comes with two step rings!When I realized that it was coming with two step rings, I wondered if I would if they would feel cheap. I have to admit they seem a little lighter weight than my other step ring (also made by K&F) but the don't flimsy and they work very smoothly. They screw on without any binding and my 82mm filters, also, screw onto the step rings smoothly. Not only do you get two step rings for less than you typically pay for one inexpensive step ring but they even throw in a microfiber cloth. This is a real bargain!