1.Automatic bed leveling kit, easy to achieve automatic bed leveling, the bl-touch sensor can be fully applied to any surface 2.Easy Firmware Upgrade：Simply download the BLTouch firmware from the Creality official website and store the files in your printer's TF/SD card. Insert the card into the printer.Turn on the printer and wait for a few seconds until the firmware is updated. No need to use ISP burner and more convenient to use 3.Suitable for Creality Ender3 v2/ Ender3/ Ender3 Pro/ Ender 3 Max/ Ender5/ Ender5 Pro/ CR-10 3D Printers (32 bit V4.2.2 or V4.2.7 motherboard only) Firmware： 1.Download BL-Touch firmware from the official Creality website. 2.Go to formatted SD card without any other files. 3.Insert the 3D printer card slot directly .
eBay