Filament spool clip designed for Avery L4778 labels 45.7 x 21.2 mm (max label size 48 x 24 mm). Curved to the profile of the spool to reduce stress on the filament. Tuck one side of the clip into multiple loops of filament and the other has a hole for the loose end (1.75mm diameter filament). Prints without support or brim and can print 80+ on one plate.