Product review (5 stars): So far so good - look great
I got sick of throwing away rusty and burnt metal drip pans so decided to try these. Seemed a little pricey, but hoping to get more use out of them than the other kind, for a better investment and less waste.

One of the pans arrived with a tiny chip, which I chose to ignore. Hopefully it doesn't expand and they don't chip easily. These look much nicer on my white stove than the metal pans - they blend right in. Hopefully the finish (porcelain?) on these is as stain-resistant as the enamel (?) on the stove itself and they last a long time. As of now, after owning them for a few weeks, I'm very happy with them. Very glad to find them! Thanks to my local hardware store carrying the black porcelain which I tried but didn't like on my stove, or never would have even thought to seek out white porcelain.

I have a Hotpoint and knew they would fit before ordering, because I had already tried the same size in the black color (from local hardware store, but didn't look good on my white stove). Otherwise, it does seem difficult to determine correct size for your particular stove. I believe the manufacturer's website offers model/size advice.

UPDATE: Top of stove seems to get hotter with these. Can't be sure they are the cause, but I suspect they might be conducting the heat to the rest of the stove top more than the metal ones did.