Features 1、Compact And Lightweight: This 3D printer extruder hotend replacement kit is small in size and light in weight, which makes it very easy to install and remove for replacement. 2、Excellent Aluminium Alloy Material: This 3D printer extrusion head kit is made of excellent aluminium alloy material, which is strong and abrasion resistant, heating block, and has a long service life. 3、Fast Heating: This 3D printer extruder hot end kit has 20 x 20 x 10mm size heating block, 24V40W 1m XH2.54 terminal heating rod, NTC 100K 3950 1m XH2.54 terminal thermal wire, 2 x 4mm blue 1m PTFE tube. 4、Good Compatibility: This extruder hot end kit is M6 x 13mm, wire outlet calibre is 0.4mm, and 0.75mm fine thread, which has good compatibility and can be used in for CR10S PRO, for CR10S PRO V2. 5、Wide Application: This 3D printer assembled extruder kit has a wide range of applications and can be used for crafting, modelling etc. It is very practical and can replace old and damaged extruder heads. Specification Item Type: 3D Printer Extruder Hot End Kit Material: Aluminum Alloy Nozzle Size: Approx. M6 x 13mm / M6 x 0.51in, Filament Outlet Diameter: Approx. 0.4mm / 0.02in, Fine Thread: Approx. 0.75mm / 0.03in Heating Block Size: Approx. 20 x 20 x 10mm / 0.79 x 0.79 x 0.39in Heating Rod: 24V40W 1m XH2.54 Terminal Thermistor: NTC 100K 3950 1m XH2.54 Terminal PTFE Tube: 2 x 4mm Blue 1m Application: for CR10S PRO, for CR10S PRO V2 Package List 1 x 3D Printer Extruder Hot End Kit