Product review (4 stars): Work as describe
The problem: Burning your arm on the edge of the rack.
The solution: Snap these (six snaps per guard) to the front edge (as pictured).

Installation takes one minute total. They bunch up a bit, but not too bad. They DO protect you from the heat, no doubt about it. However, they start to discolor and turn brown, and after about five baking cycles, they were a mottled color. That in no way affects their function, so I'm still glad I got them.

If appearance matters, you're sure to be disappointed. If protecting your forearms is key, then you'll be delighted.