Keep nozzle cleaning reliable with this 5-pack of genuine QIDI Max4 Nozzle Wipers. Each OEM wiper uses a flexible PP structure, PTFE tube, and locking screw to remove excess filament from the nozzle before printing and during material changes. Replace the wiper when the plastic arm becomes deformed, damaged, or begins slipping to help maintain cleaner nozzles and more dependable print starts.