automatic dry herb grinder: made of aluminum 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, peppercorns or beans. Holds up to 2 grams for easy one-handed herbal preparation. Includes 2-second protection device if stuck, automatically turns off and requires switch reset. portable to carry: compact, lightweight design is small enough to take anywhere. Sleek and portable for convenient on-the-go use. multiple uses: suitable for grinding spices and certain kitchen ingredients. Can also be used to re-grind pressed powder. Ideal for various applications including party use. note: for safety reasons, the factory battery charge is at 30%. Please charge before first 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 products not included. note: due to light reflection and display differences, the item color may vary slightly from the image. Measurement error allowed within +/- 1-3 cm.