MK8 0.4mm Nozzle 2 in 1 out Dual Color Hotend Extruder Transparent PTFE Tube Thermistor Heating Rod Kit 3D Printer Parts for Creality Ender-3/CR-10 Feature: The external dimensions of the main body conform to the CR radiator, and the volume is small and does not occupy the molding space. Strong compatibility. Made of all metal, reliable and durable. Imported pure transparent PTFE tube is used, and the feed is visible. High-power heating rod and 100K thermistor. The radiator is enlarged in size to provide a more powerful heat dissipation effect. The two-in-one wire aluminum block is detachable for easy cleaning. Two types of filaments can be connected, switch between the two inputs when printing, and extrude through the hot end. The color switch is fast and stable, and the print quality has no obvious defects. The heating block and the heat sink are connected and fixed by two screws, and the print head is more stable. Two-color metal hot-end extruder kit for CR-10 series and Creality Ender-3 3D printers. Specification: Name: MK8 2 in and 1 out extrusion head Colour: Black Voltage: 12/24V (optional) Heat shrinkable material: Aluminum alloy Heater material: Aluminum alloy Nozzle material: Copper Pneumatic joint material: Stainless steel Wire length: about 140cm/4.6ft Nozzle aperture: 0.4mm Port: XH2.54 2Pin Lead length: 100cm/39.37in Body size: 23x76x25mm/0.91x2.99x0.98in Package weight: 83g/ 2.9oz Note: Due to the different monitor and light effect, the actual color of the item might be slightly different from the color showed on the pictures. Thank you! Please allow slightly measuring deviation due to manual measurement.