Filament Roll holder

I have designed this for Flsun cube, it can be used with stock filament holder ( it is upgrade for that) i have used 2 6202 barrings, but smaller barrings can be used too,

One thing that i have noticed is that on stock filament holder , the filament roll if it is haver then 250g will stuck and the extruder motor will have to work hard to pull the filament, but by adding this design we have installed 2 barrings and they really help a lot, you can even see the filament roll back to the RIM wh