Product review (3 stars): Does the job
3 stars...although the only reason is that I bought them SPECIFICALLY for the BOTTOM of the oven. I did not see anywhere on the reviews or description that you couldn't put them on the BOTTOM of the oven.....until I got the package...and it clearly says DO NOT PUT ON BOTTOM OF OVEN. *eye roll emoji* Not what I wanted. I did put it on the lower rack and it is working fine as I don't use both that much. Just want to save me the trouble of bottom oven cleaning. ew! This will work, just not what I expected.