Features:1.5PCS New practical automatic leveling sensor needles, ensure printer's security.2.Cost effective upgrade kit and high performance.3.Made of high quality safety plastic material, has a long service life.4.Very easy to operate, simple combination installation and use.5.Install method:Step 1:Please remove the screw on the top of the sensor. Step 2: Remove the needle from the top. Step 3:Then replace the new needle and install the screws.Description:Our 3D touch sensor replacement needle is made of high quality safety plastic material, very easy to operate, and it can ensure printer's security.Specifications:Size:2.9*35mmMaterial:PlasticPackage Included:5*3D Touch Sensor Replacement Needle