I originally bought them as a replacement for my Rebel earbuds. When I receive them. the form insert of the replacement were smaller then the originals. I thought the replacement fit all models judging by the website.
Small Foam Replacement Ear Tips
I purchased these earbud replacements and they were for a different model than what I have. I made a mistake by buying them
This was an awesome option. Now my husband can use both rumble and ruckus models now that we have the replacement ear tips.