Product review (2 stars): What the seller doesn't tell you
The two wire nuts in the picture are actually made of ceramic. I did not know this. Both the nuts came broke and I had to find them elsewhere. The nuts are very fragile and you can't buy them at your local Wallie World. It makes sense that the nuts are ceramic because plastic will melt in your range.  The manufacturer should have packaged it better.  Perhaps putting the wire nuts in a bubble pack.