Product review (5 stars): Top Notch!
Our previous gap covers were the most common metal ones with a thin magnetic strip on the underside which held it in place on the range. Aside form the sharp edges (be careful when you clean!) after a while, the metallic strip degraded and I needed to use BarTender's Friend cleanser to get the residue off of the range.
Enter these silicone gap covers. I got white, which worked out very well, They are quite flexible,  there are no caution notices. While the ridge - which fits between the counter and the range - was thicker than the metal one, a quick push on the range made enough of an opening to insert the ridge. In addition, the silicone is easy on our tile counter as well as the ceramic of the range.
Were it necessary, I could easily trim the cover to fit as necessary.
This is one of those times when a product simply overwhelms the competition in the category. These covers are less expensive, easier to clean, safer in use and their flexible compound assures a better fit than the metal ones.
I received no incentive of any sort to review this product and paid full price for it.

(One minor issue: while there is mention of a free e-book available, trying to reach the website yields only a "404 - site not found" notice. )