Product review (4 stars): Great gift for the accident prone chef
These guards do exactly what they say. If you have a tendency to acquire burn scars on your hands and arms due to taking things out of the oven, these can lessen the blow.  As can be seen, they don't line the entire front edge of an oven rack, so I made a point to buy a few so that I can have two on each rack, ensuring full coverage.  They are easily washed in the clothes washer, and snap on very easily.  Once they are on, it is easy to forget they are even there; No snagging pans on the edge when removing things from the oven.  This is a solid product and I don't think I'll go without rack guards ever again.  My battle scarred hands seem to be thankful!