[Variable Speed Control & Versatile Accessories]: This product features a two-speed setting function, allowing you to adjust the reciprocating speed between 3,000 and 3,400 strokes per minute for precise control over your sanding task. The interchangeable sanding heads, including multiple specifications, enable you to tackle a variety of materials and parts with ease, ensuring a perfect sanding effect every time. [Quick Release System & Ergonomic Design]: With a quick-release mechanism, changing or securing the sanding bit is swift, saving you time and effort. The sander's curved body conforms to your hand, offering superior comfort and control during extended use. Its lightweight design and wireless operation provide unparalleled maneuverability. [Battery-Powered Convenience]: The removable battery compartment accepts a single AA battery, providing high flexibility to work anywhere without the need for cords or outlets. This cordless design ensures unobstructed movement and maximum portability for on-the-go projects. [Solid Construction & Wide Application]: Constructed with robust ABS material, the sander is built to withstand the demands of regular use. Suitable for various sanding tasks, from smoothing out rough edges to sanding detailed models, it is a versatile tool for model makers, hobbyists, and DIY enthusiasts alike. Please note:the physical slightly color difference or difference, does not affect the use, please do not mind, thank you! Name:Reciprocating Sander Battery:1xAA battery (not included) Colour:As Shown Material:ABS Package Contents: 1set * Model Electric Sander Grinding Pen 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.