Official original, compatible with Saturn 4/ Saturn 4 Ultra resin 3d printer The surface of the build plate is laser engraved, which can have better adsorption and prevent the model from falling off and warping during the printing process. No longer need manual leveling, the printer has a built-in sensor to achieve automatic leveling of the build plate, accurate leveling and time-saving The resin tank is made of high-quality aluminum alloy, with better hardness and wear resistance, corrosion resistance, durability, and no need for frequent replacement User-friendly: Abandoning traditional design, the build plate can be easily removed and installed with one button, making cleaning and maintenance a breeze. ELEGOO Original Building Plate for ELEGOO Saturn 4 Saturn 4 Ultra Resin 3D Printer