automatic dry herb grinder: made of zinc alloy, 15,000 RPM, 600 mA battery powered grinder with stainless steel blades that grind to fine or coarse consistency according to your needs in seconds. Saves time compared to manual grinding. automatic grinder: features a two-direction rocker switch. Not suitable for hard nuts, shells, pepper corns, or beans. Holds up to 2 grams for easy one-handed use. Includes a 2-second protection device if jammed, automatically shuts off and requires switch reset. portable to carry: compact, lightweight design makes it small enough to take anywhere. Sleek and portable for convenient grinding on the go. multiple uses: suitable for grinding spices and certain kitchen ingredients. Can also be used to re-grind pressed powder. Ideal for various non-prohibited applications. note: for safety reasons, the factory battery charge is at 30%. Please charge it fully before use. color: black material: aluminum alloy package contents: 1 x grinder 1 x USB cable 1 x English manual only the above package content included; other items not included. note: light reflection and different displays may cause slight color variations between the image and actual product. Measurement error allowance is +/- 1-3 cm.