Product review (4 stars): These are nice and work great so far.
I have a brand new glossy black stove and dark counters and these look pretty slick in place.
If I had a camera I'd post a pic, but I don't so I won't.

They're flat black - no shine at all, and wipe off easily.

They arrived folded in half and the center of each was kinda stuck to itself and I thought there would be an problem with them not wanting to lay flat.
But after unfolding and unsticking them they flattened out nicely. I didn't need to trim them at all.

There's only a small gap on each side of the stove and it was a snug fit.
I popped up the stovetop and lowered it as I guided the gap covers into place.

Last week I was shopping at Home Depot when I happened upon the Range Kleen gap covers I'd seen on their website (and Amazon).
I inspected them for a minute and was glad I'd ordered the Capparis because those others were shiny and felt really flimsy and cheap.