This USB fast-charging power sander comes with 8 different sizes of nylon sanding heads and 12 types of , self-adhesive sandpaper. The sizes and shapes are super easy to identify, and the variety of sanding heads and precision sandpapers are perfect for all kinds of DIY projects. This compact sander is and designed for comfort, making it great for both small tasks and more detailed jobs. Its portable size gives you full control for smooth operation. Plus, with 3 adjustable speeds (2800/3100/3600 strokes per minute), you'll be to finish your work quickly and efficiently. The mini reciprocating sander features an intelligent overload chip that keeps the motor safe. If it ever gets overloaded, the tool automatically stops to prevent damage, helping extend the motor's life. This electric sanding pen charges in just 20 minutes! It also has an intelligent indicator light that shows you the battery level in real time. Once fully , you can use it for up to 100 minutes without any issues. This Mini Electric Reciprocating Sander is a must-have for woodworking enthusiasts and modeling enthusiasts, and makes a great gift! Product Name: Mini Reciprocating Sander Size: 178x21x18mm Reciprocating stroke: 2.50.1mm Reciprocating level deviation value: 0.1mm Battery specification: 280 mAh Left right swing deviation value: 0.1 mm Load output current: 750 mA Input voltage: 5 volts Maximum no-load output current: 250 mA Output voltage: 3.7 volts Power rating: 2.8 Input Current: 1 amp Charging time: 20 minutes No load continuous use time: 100 minutes Color: As Shown Material: Metal+Plastic Package Contents: 1 x machine body 8 x grinding heads 1 cord 1 x storage box 582 x self-adhesive sandpaper for flat grinding heads (#180/280/400/600/800/1000, 97 pieces for each grit size) 282 x self-adhesive sandpaper for arc grinding heads (#180/280/400/600/800/1000, 47 pieces for each grit size) 10 x finger cots Only the above package content, other products are not included. Note: Light reflection and different displays may cause the color of the item in the picture a little different from the real thing. The measurement allowed error is +/- 1-3cm.