Prusa XL TPU guide clip

Using extremely flexible SHORE 95A TPU filaments on the PRUSA XL is a challenge because the PTFE tube presents a lot of resistance.
Directly connecting the filament to the head from the spool is not the solution because it causes tangles. 
I first thought of using small segments of PTFE tube to place them but then realized I didn't have any left, so this is a temporary solution that works quite well.

This guide clip guides the filament from its spool to the head.

Instead of using small segments of PTFE tube it just has a ring in it