This cr-10 hotend can work with different sizes of MK8 nozzle: 0.2mm 0.3mm 0.4mm 0.5mm 0.6mm 0.8mm 1.0mm nozzle | 100% original and high quality 3D Printer accessories for CR10/ CR10S/ CR10S4/ CR10S5 | MK8 Extruder Hot End Kit, white wire is temperature thermistor, black wire is heating tube 12V 40W | Tip of the nozzle, aluminum heating block, throat pipe (built-in Teflon) | CHPOWER is a TRUSTED VENDOR, we provide 12-month manufacturer service on all parts. Buy with confidence.