Product review (5 stars): Revised casting?
A lot better than the rollers that came with our dishwasher.  These wheels don't pop off of the posts.

There's still the issue of having to pull the dishwasher out from under the cabinet to replace these,
but that's a dishwasher design issue, not a problem with this replacement part.

I used these (4 of them in total) on my GE dishwasher model GHDA696P02SS .