Small Double Ended Stamper

I swear the stamp ALONE is so satisfying to touch that it is worth it on its own

The concept is quite fine. However, practically, the small end has trouble staying in. On one hand, I kind of get it, since I guess they don’t want to glue it in or something. On the other hand, it’s a bit annoying because the curved surface doesn’t sit level properly. It does get the job done however

Thank you