AMS 250g spool Extension

I bought a ton of 250-gram spools from Aliexpress and Temu for filament testing to see what kind of filament would look cool, and I didn't want a 1-kg spool. I thought I'd buy 250-gram spools, but they didn't fit in the AMS, so I ran to the filament board and designed something. The rim size is 20 cm. The 41-mm thread size is suitable for spools from Temu and the like.