Product review (3 stars): Oven Rack Guard OK
I ordered these oven rack guards after burning myslef reaching into the oven.  They do the job of covering the rack's edge and protecting me from myself.  There is one problem that makes me say the product is just OK, and that is the discoloration.  I use my oven frequently and after a very short time, the rack guards became discolored.  They are cream colored, but very quickly darkened in an uneven way and are unsightly.  They work really well, but don't look good.  If that is not an issue for you then the product is a good choice.