[Application Scenario] This product is designed for smoothing, repairing, and modifying 3D printed parts. Can be used with plastic 3D printing materials to make post-print cleaning and assembly easier. [Easy Disassembly]Replacing the soldering iron is very simple. There is no need to remove the entire soldering iron , simply unscrew the from the connector and reinstall it. [The speed is adjustable]0-20000 rpm, running smoothly, you can adjust the speed according to your needs [Customer Satisfaction Guaranteed]We're committed to delivering high-quality prosucts and provision. Plug Type: US Plug,it applies to Canada, India, Japan, Mexico, Thailand, the , the Philippines and so on. Input voltag: 100V-240V Frequency:50-60HZ Power supply method:USB power supply Color: Black Material: ABS Package Contents: 1 * grinder 1 * power plug 6 * grinding heads 1 * English instruction manual 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.