Bamboo Lab Original Hot End with 0.4mm Hardened Steel Nozzle, Compatible with Bambu Lab X1 Series and P1 Series 3D Printers Includes: Hotend with Nozzle, Silicone Sock, Thermal Grease, M3-14 Step Screws ,Fixing clip Max. Printing Temp. 300 ℃ Bambu PLA-CF and Bambu PETG-CF have been extensively tested and proven to have a low risk of clogging when printed with a hardened steel 0.4 mm nozzle, while also achieving higher print quality. Bambu Lab Original 0.4mm Hardened Steel Nozzle Assembly Hotend Kit for X1 Series and P1 Series,Compatible with P1S P1P X1C X1 Carbon 3D Printer