Materials and Design: The main body of the dispensing needle is made of stainless steel and aluminum alloy, the gear is made of aluminum, the powder needle is made of 316 stainless steel, and the Coffee Dosing Ring is made of strong magnets and aluminum, enhancing the smoothness and aesthetics of rotation. Gear design: The gear design imitates the rotation and revolution of planets in the universe, and the motion trajectory of each needle is not a simple concentric circle, thereby increasing the distribution area and efficiency. Ultra fine needle distribution: Use a 0.25mm diameter distribution needle with an additional 5 spare powder needles to ensure that the needle path does not leave grooves, resulting in a more uniform and smooth distribution effect. Compatibility: Compatible with all 58mm powder bowls by default. Effect: Effectively disperses coffee powder clumps during the grinding process, reduces channeling and channeling during the extraction process, thereby improving the extraction efficiency of concentrated coffee.