Simple materials--Using water (distilled water and pure water) as fuel, easy to obtain and energy saving. Safety guarantee--Low working voltage, designed to automatically cut off when exceeding the set voltage. Exquisite craftsmanship--This product adopts a series parallel composite process for electrolysis. Environmental protection and energy conservation--This design makes the machine safer, economical, environmentally friendly, and convenient to obtain fuel. Suitable for grinding various materials, including natural Gemstonestones, semi-precious stones, s, jade, crystal, and agate.