Features: 1.[Original PTFE Tube] The 1 meter original PTFE tube has the lowest friction. It has higher responsiveness, less retraction, more accurate printing, less extruder slippage, wear and tear, and less clogging during printing. 2.[Pneumatic Connectors] PC4?M6 and PC4?M10 pneumatic connectors are used to fix PTFE on the extruder and hot end. The non stick silicone nozzle helps to keep the hot end temperature extremely stable. 3.[Complete Tools] You will get 1 1M tubing, 1 PTFE pipe cutter, 2 PC4?M6 pneumatic connectors, 2 PC4?M10 pneumatic connectors, and 2 0.4mm nozzles. Use enough kits to complete the configuration of the 3D printer. 4.[PTFE Cutter ] A PTFE cutter is also included to ensure that the PTFE is cut flat on both sides to prevent any malfunction or thermal creep during feeding and retraction. Improve 3D printer performance. 5.[Wide Compatibility] With a wide range of application, this parts kit is compatible for Ender 3, for Ender 3 Pro, for Ender 5 CR?10 Series, for Ender 10S, for Ender 20, for Ender 20 Pro2. specification:Item Type: 3D Printer Parts Kit Material: ABS Function: 3D Printer Accessories Application Scope: Suitable For Ender 3, for Ender 3 Pro, for Ender 5 CR-10 Series, for Ender 10S, for Ender 20, for Ender 20 Pro2 PackageList: 1 x PTFE Tube 2 xPC4-M6 2 x PC4-M10 2 x 0.4 Nozzles 2 xSilicone Case 1 xTube Cutter NotePlease note that the new type and old type of this product will be sent randomly, and make sure you will not mind before ordering.