Spare parts: If you have any questions about the product, please uspromptly, and we will provide you with satisfactory service. Easy installation: and disassemble, no tools required, just the PTFE connector to the cloned Explanation: Good and easy to use. First, press in the metal body components, and then gently press in theblue Suitable for BMGextruder Printing: PTFE head double-sided printing, can be used for fixing, and rust prevention. Bowden Connector PTFE Head Pneumatic Head for Cloned Extruder Upgraded Bowden Extruder 1.75mm, Manufacturer: AOYUDJ