While on vacation, the resort we stayed in had a similar product. I had been looking for them online in janitoral supply places,etc. When I saw them searching for an unrelated product on Overstock I snapped them up. These are great. Extremely durable and much easier to fit into small things like glasses and bottles. I've washed them numerous times and have been rotating the same 4 through the laundry since I bought them a couple of months ago. I've not needed to throw any out and they work just as well as the first time I used them with to holes or wearing through.