I put these in our trailer on our gas stove. It is always so difficult to clean up any spills. Putting these on the stove was very easy. The slots around the hole opening make it easy to slip over the the flame part of the burner. I didn't need to cut any of them the laid perfectly under the burner. So this weekend being rainy I did a fair amount of indoor cooking and gave them a workout. I had a pot of potatoes over boil and the burnt and dried up liquid wiped right off easily making clean up a breeze. I had some left over so I gave a set to my neighbor. I hope they like them as much as I do.