Description: MK-8 extruder feeder drive 1.75mm filament, suitable for Ender 3/ /3 X, Ender 5/5 Plus/5 Pro, CR-10S, CR-10 Plus,CR 20/20 Pro, CR-X, It makes loading the filament easier and smoother, no worries about filament scraping or breaking The 1*1 meter PTFE tube has the lowest friction, stronger reaction force, smaller retraction rate, more accurate printing, less sliding, abrasion and tearing on the extruder, and less clogging when printing thick filaments (such as some wood filler or iron filler). 1 pair-Small and large pneumatic couplers secure the PTFE in the extruder. Made of high quality material, durable in use, high performance, DIY kit and you need to assemble by yourself. A premium upgrade kit for your printer, this quickly and easily installed collection of tried and tested upgrades improve the performance and reliability for printer Specification: Type: Extruder Kit Size: Approx. 26 x 18cm/10.2 x 7.1 inch Material:Metal + plastic colour:Silver+blue Surface Treatment: Oxidized Blasting Fitment for Ender-3/Ender-3S/Ender- / Ender-5 Package Includes: 1 Extruder Kit 3D printer supplies Note: 1.Please allow 1~3 cm error due to manual measurement, thanks. 2.Due to the difference between different monitors, the picture may not reflect the actual color of the item. Please understand, thank you