Self-Supporting Pyrometric Cones for Accurate Firings in Industrial, Pottery and Hobby Kilns - Cone 6 (Pkg/25)

Works great

I haven’t used them yet but they look perfect

Break apart easily. Good packaging. Cheaper then ceramic supply stores. Will order again.

I've purchased four or five boxes at different times and I have experienced some broken cones like others have mentioned. The worst box I've received still had 18 out of 25 intact. That may seem frustrating but honestly, the fact that I can just click click on amazon and get them fast cancels out some of the loss. Not ideal, but not terrible. I've had some boxes with one or two broken.They're manufactured in pairs to mitigate potential breaks. If you're careful you can snap them apart with few in any casualties. I believes I've broken ONE tip after separating 100. You really have to be mindful of applying equal, even pressure across the entire seam.

Works as expected

arrived whole not broken. stands by itself. I'm very pleased

Works well. And gives accurate reading

These work as intended for ceramic firing accuracy/testing in kilns.