### Integrated Nozzle Wipe + Waste Storage Design Built-in elastic wiper scrap residual filament off nozzle, inner cavity collects purge waste automatically. ### Complete With Matching Thread Lock Screw Package includes one anti-loose screw for fast secure mounting after old part removal. ### Simple Four-step Disassembly & Swap Follow official install steps to slide out old component and lock new unit without printer modification. ### High Toughness Anti-break Engineering Plastic Durable modified plastic resists high ambient temp near hotend, not easy to crack after long-term use. ### Keep Hotend Clean To Reduce Printing Defect Regular nozzle wiping avoids stringing, blobbing and improves finished print surface quality.