Features Applicable Models: This throat tube is suitable for Ender 3 S1, Ender3 S1 Pro, for CR 10 Smart Pro, for Sermoon V1, V1 pro 3D printer, check the model! Delicate Craftsmanship: The inner wall of this tube is smoothly without ink blocking, and the pumping resistance is small, providing stabler and smoother using. Ti Alloy Material: This tube made of Ti alloy is corrosion resistant, high temperature and wear resistant, strong and sturdy, ensures a long life span. Branch Design: Adopts branch design, this tube has strong thermal resistance and can dissipate heat faster. Ideal Replacement: This throat tube can be easily installed, ideal replacement for the old and damaged parts. Specification: Item Type: Heatbreak Tube Material: Ti Alloy Product Size: Approx. 19 x 6mm / 0.75 x 0.24in M6 thread Applicable Models: for Ender 3 S1, Ender3 S1 Pro, for CR 10 Smart Pro, for Sermoon V1, V1 pro and other printers. Package List:2 x Heatbreak Tube Package List 2 x Heatbreak Tube