Product review (3 stars): They work pretty well for tines that have not rusted or begun ...
I had a concern about the color before I bought these... and unfortunately they are exactly as pictured - off white. I was hoping they were going to be  a closer match to the regular white color of the rack. They do hide the rusted tips but now has given the rack an aged look. They work pretty well for tines that have not rusted or begun to disintegrate - which will make it hard for the covers to slide over that part. I did try heating a few of them up in warm water to see if they would go on easier but what happens is that they become too flexible so you can't push them down - they will fold over instead.