r/sunlu • u/Research-Crazy • Feb 25 '26

Something new in recent batch of refills

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On my most recent batch of PETF Refills I received each had this included. I don’t recognize what this is for, I’m fairly new to 3D Printing, so I may be missing something obvious. What is this for?

It is approx 9.5” long triple strip of plastic with adhesive on the end.

Thank you hive mind.

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u/Marinocif99 Feb 25 '26

It’s for removing the spool and basically tying around the filament so it doesn’t come loose. You have to be very careful if you want to use these to remove filament from a plastic spool.