Product feature Since most filaments are made of plastic, they are often statically charged and attract all kinds of debris from your filament storage or work surface. The anti-static filament cleaner wipes away lint, dust or other dirt before the filament enters your printer's valuable extruder and nozzle. The use of the filament cleaning block will prevent the nozzle from being blocked by debris and extend the life of the nozzle and hot ends. Product instructions As the filament is drawn through the cleaning block, dust, hair, small plastic or other chipped material is wiped from the surface of the filament. As hot-ends, extruders and nozzles become more and more sophisticated and monolithic, repair or replacement is costly and can also cause a lot of printer downtime. This filament cleaner prevents all this and allows you to print without interruption. Product description Name: Filament Cleaner Material: plastic Size: 15*30mm Black color Compatible for: 1.75mm or 3.0mm filament Package included: 1 pc