Product review (2 stars): Melts over time
I purchased these guards two years ago and they worked reasonably well.  They stayed in place even when I pulled the stove out for cleaning.  I tried to remove them today when cleaning only to find that the magnetic strip had melted to the side of the stove.  It is taking quite a bit of hard work to get the melted plastic removed from the stove as it has also become fairly brittle and comes off in very small pieces.  They worked well while they lasted but I think two years may be the maximum life of these guards.