wheels kept coming off

This is more of a nuisance problem than repair. We have had this excellant dishwasher for years and the last two or so years the wheels kept coming off, my wife would get on me to put them back, after a while she would just lay them on the counter and i would get the message. the reason they kept coming off was because over time the retaining plastic was sprung or broken off. I tried to repair them with glue,tape,etc. nothing worked for long. I am handicapped and couldn't get to the store. I ordered the part from you and got them that same day, my wife and I were amazed. Thank You!!!!!!!!