Features: Printing: PTFE head double-sided printing, can be used for fixing, anti-corrosion, and rust prevention. Spare parts: If you have any questions about the product, please contact uspromptly, and we will provide you with satisfactory service. Easy installation: Easy to install and disassemble, no tools required, just connect the PTFE connector to the cloned system. Bowden Connector PTFE Head Pneumatic Valve Head for VORON Cloned Drive Extruder Upgraded Bowden Extruder 1.75mm Explanation: Good quality, and easy to use. First, press in the metal body components, and then gently press in theblue plastic cover. Suitable for VORON BMGextruder Specifications: Material：Plastic Size：Mixed For: VORON Cloned Drive Extruder Quantity： 10/20/50PCS Package Includes: 10/20/50PCS Pneumatic Valve Head Connector 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 1-3mm measuring deviationdue to manual measurement.