3D Printer Supplies Filament Cleaner Crack Resistant Foam Blocks

Features:
Made of crack and flame resistant rubber foam.
Stay on the filament tip during storage to prevent it from self unwinding.
Used for cleaning dust of filament, prevent your nozzle from being blocked by a buildup of debris and extend nozzle's and hot-end's using life.
3D print filament dust removal foam block comes in size 15 * 15 * 30mm.
100% brand new and high quality; useful filament cleaner for 3D printing.