General description This Model Electric Sander Grinding Pen is a versatile tool designed for DIY enthusiasts, model makers, and hobbyists. It features a two-speed setting function that allows you to adjust the reciprocating speed between 3,000 and 3,400 strokes per minute, providing precise control for various sanding tasks. The sander is constructed from robust ABS material, ensuring durability and reliability for regular use. Technical specifications Battery: 1x AA battery (not included) Speed settings: 3,000 - 3,400 strokes per minute Material: ABS Measurement allowed error: +/- 1-3 cm Compatibility and accessories Interchangeable sanding heads with multiple specifications for various materials Installation Quick-release mechanism for easy changing or securing of sanding bits Usage Suitable for smoothing rough edges and sanding detailed models Wireless operation for maximum portability and convenience Other information Light reflection and different displays may cause color