Since the usual filament clips for small filament rolls (250g) are impractical and too long, I have developed this filament clip. It MUST be printed from flexfilament (TPU)!

I am aware that printing with TPU is a bit problematic. 

Depending on how the 3D printer is set up, the hole for a 1.75mm filament can be a little tight. In CAD I designed the hole to be 1.8mm. But even so, the filament may need a little pressure the first time it is inserted. Once the filament has been inserted for the first time, it works perfectly. 

I also did not pull the hole to the end of the clip because it is easier to feed the filament in that way. It is easier to hit the hole with the end of the filament because the lateral surface provides a kind of guide for the filament. In addition, the hole is shorter and the filament has less resistance when inserting it.
I am aware that supports are needed and that they are always a bit problematic with TPU.
I had already tested a version with a filament hole to the end of the clip but it proved to be less practical.

This is the 4th version of the clip and I actually only use this type for all my filaments. I am very happy with it.

The advantage is also that if you use vacuum bags to store the filaments, they are less likely to be damaged because of the softness of TPU. PLA can quickly cause cracks in the bags.