Welcome to the store! 1. 3 Speed Settings: The cordless rotary tool with variable speed can be adjusted to 3 different speeds at 5000, 10000 or 15000 rpm to meet your different needs. 2. Multiple Purposes: When you think of engraving, sharpening, grinding, polishing or sanding, you will find this powerful rotary tool a must-have. It is suitable for wood, plastic, tile, glass, stone, metals, etc. 3. Long Battery Life: The upgraded lithium-ion battery holds 2.5 times more power than previous versions and features fast charging technology to save you from charging anxiety. Convenient micro USB charging ensures charging anywhere, anytime. 4. Various Accessories: This powerful rotary tool comes with 26 accessories and is perfect for a variety of light projects. All you need is this convenient all-in-one tool. 5、Compact Lightweight: Powerful yet small and lightweight, just like holding a pen during use, for ultimate control and accuracy as well as for comfort. Item Type: Electric Grinder Pen Material: ABS Battery: 1 x 3.6V 18650 650mAh Li-ion Battery (Comes with built-in battery) Rotation Speed: 5000 or 10000 or 15000RPM Charging Interface: Micro USB (DC5V) 1 x Electric Grinder Pen 25 x Accessories 1 x USB Cable 1 x User Manual Your satisfaction is our top priority. We will provide you with the best service. If you find any problems after receiving the product, such as damage, incorrect quantity, etc., please contact us immediately and we will give you the best solution!