Filament keeper

Keeps filament from unraveling and tangling during storage—without the hassle of separate clips that must be removed before printing. This keeper can stay on the spool while printing and won’t snag or interfere with filament feed. When you’re done printing, simply remove the filament from your printer and store the spool as-is.The side slot allows quick, easy attachment and removal. Printed in PLA, the keeper is flexible enough to wrap smoothly onto the spool while maintaining low friction, so it won’t bind or resist the printer as filament is being pulled.