This is an extension for the original spool holder of the Prusa i3 mk3s+.

I don't know if there is a more official solution for this issue (let me know if you know one). I had the problem that I bought a Prusament PLA recycled 2kg spool and it didn't fit for the original Spool Holder of my Prusa i3 mk3s+. So I build this extension.