Mini Filament Sample Spool

Hi,
I designed this spool because i often use samples or a few meters from my 1kg spools to use it for my 3D-Pen. To store this Filaments (ca. 2-5 m) I used a normal box but the filament does not just stay in the box and wanted to return to its original shape. So i designed this mini Filament spool (ca. 10 cm outer Diameter and 2-3 cm thick, you can adjust it with the thread.

Furthermore I added some Filament holes to insert the Filament ends to make rolling up easier.

will print it soon