Reciprocating Polishing Pen: Our Mini sander has a reciprocating mechanism, which makes the sanding process more uniform and stable. This movement ensures that the sanding pen can continue to provide stable sanding when processing details, resulting in a smoother and more uniform sanding effect Three-speed adjustable and fast charging: The sander has three-speed adjustment, 2800/3100/3600 times per minute, which can be adjusted according to your needs. The charging time is about 20 minutes, and the indicator light feedbacks the power in real time. The battery life is about 100 minutes when fully and no-load Detail Processing: Compared with large , detail sanding pen are more suitable for processing details. It can easily handle edges, corners and irregular surfaces for precise sanding and grinding Portable and Easy to Use: Our electric pen sander for crafts is compact and , easy to carry and operate. It can be easily put into a toolbox or backpack for sanding , in the studio or outdoors anytime, anywhere. You can easily control it to perform precise sanding and grinding on edges, corners and irregular surfaces Widely used: The small for tight spaces, small grinding, polishing, DIY crafts, and the drill bit can be quickly replaced. Whether it is for the detail processing of wood, plastic or metal materials can be used Included: 1x Sander Body 8x Sanding Heads 97pcs Flat Self-Adhesive Sandpaper:180/280/400/600/800/1000 47pcs Round Self-Adhesive Sandpaper:180/280/400/600/800/1000 1x USB Power Cord 1x Cut- Gloves 1x Storage Box Colour:As Shown Material:plastic Package Contents: 1 set x 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.