Features: 1.3D Printer Accessories: This auto bed leveling sensor kit is suitable for Ender 3 / CR 10 3D printer. 2.Accurate Measuring: Printer TOUCH is automatic leveling sensor for 3D printers, which can accurately measure the tilt of the printing surface. 3.Easy Assembly: Just download the BLTouch firmware and save the file to the printer's memory card. Insert the card into the printer. Turn on the printer and wait a few seconds to install the firmware. 4.High Accuracy: This auto bed leveling sensor kit for Ender can greatly improve the printing accuracy of 3D printers. 5.Warm Tip: Pulling or pushing the push rod too hard may damage the touch sensor and make it inaccurate. specification:Item Type: Auto Bed Leveling Sensor Kit Material: ABS Application: Suitable for Ender 3 / CR 10 PackageList:1 x 3D Touch Sensor 1 x Holder 1 x Programmer 4 x Screw 1 x Connecting Wire 1 x Grey Ribbon Cable 2 x Adapter Plate 2 x Cable Tie 1 x Wrench