Product review (3 stars): Solved a problem, but this product has to be 'micro managed' in order to perform.
My dishwasher rack had the same rust spots on the tip tines as others have described.  These went on easily & my white dishes are now staying white.  So, this product has been helpful to us, & has postponed us having to get another dishwasher.

The description on Amazon says (at least at the time of my purchase as well as at the time of this review) that no glue or adhesives are necessary.  So, that's the way we installed them.  I found they went on fairly easily, & we were provided enough for our entire dishwasher - top & bottom shelf.  They have not been coming off while the dishwasher is running.  They do, however, come off if we're not real careful unloading the dishwasher.  I simply pop them back on.

We were planning, if these worked well, to install these tip covers in a new dishwasher (when we get one) to try to prevent the rust problem from ever starting.  We're thinking now, though, that while these are better than rust, the inconvenience of having to so carefully take each dish out (to prevent covers from coming off the tips) probably isn't going to be worth it.  We thought about trying a glue or adhesive, but when we read reviews of those products, found that people were having problems getting the the tip covers on before the glue dried in the container.  I have problems with my wrists that keep me from being able to work as fast as I'd like with my hands, so I figured the glue/adhesive is not an option for me.

This product has worked well enough for us to earn high stars.  But...the description said no glues/adhesives were needed.  It did not add that I would have to baby sit these little tip covers to keep them where they are supposed to be.  I also assume that over time, they will get looser, from coming off & being put back on - worsening the problem.  So, because of what I feel is a misleading description of this product that caused me to purchase a product, I've had to lower the stars.  I don't like inaccurate product descriptions.