Reciprocating Polishing Pen Set: This USB fast charging power sander comes with 8 sizes of nylon sanding heads and 12 types of wear resistant self adhesive sandpaper. The sizes and shapes are easy to recognize, and the various shapes of sanding heads and various precision sandpapers meet the needs of DIY craft enthusiasts 3 Speed Adjustable: The compact sander is lightweight and ergonomically designed compatible with small projects and complex jobs. The portable and compact exterior provides control and breezy manipulation. Featuring 3 speed adjustable design with 2800/3100/3600 strokes per minute, you can get the job done quickly and smoothly USB Rapid Charging: The electric sanding pen realizes 20 minutes rapid charging, and the intelligent indicator light provides real time feedback on the battery level. The battery life is about 100 minutes when fully charged and unloaded Safe Overload Protection: This mini reciprocating sander adopts intelligent overload chip to protect the motor safety at all times, the tool stops automatically when overloaded, preventing the motor loss and prolonging its service life Functional Indicator Lights: Our mini sander has 10 kinds of functional indicator lights freely assigned to meet your different needs Parts List: 1 x Sanding Pen, 8 x Grinding Head 1 x Power Cord, 5 x Fingertip 1 x Storage Box 582 x Adhesive Backed Sandpaper compatible with Flat Grinding Head (#180/ 280/ 400/ 600/ 800/ 1000, each grit x 97) 282 x Adhesive Backed Sandpaper compatible with Curved Surface Grinding Head (#180/ 280/ 400/ 600/ 800/ 1000, each mesh x 47) Colour:As Shown Material:Metal Package Contents: 1 set * detail sander 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.