Resparked Engraving Pen - brand new, used once to test, wasn’t a hobby I see myself doing Details & Specs -  Motor: 3 speed settings (8,000–21,000 RPM) and 30 g/cm torque -  Weight: 1.76oz / 50g -  Length: 4.9 inch / 125mm length  -  Width: 0.6 inch / 17mm diameter -  Battery: 3.7V Lithium Battery - 500 mAh -  Charger: USB-C rechargeable - UPC: 850065764320 The Customizer comes with everything you need to get started on your engraving projects! * The Customizer™ Engraving Pen * Carbide Burr (wood carving bit) * FREE GIFT: 30 Diamond bits for a variety of surfaces * USB-C fast charging cable * Hex key * Quick Start Guide * Pen Cap Cover * User Manual * 4 Practice canvases (Acrylic, Bamboo, Eco-leather, Aluminum) Easy to Use, Perfect for Beginners Enjoy a Relaxing, Fun Experience Make Ordinary Items Unique #engraver #crafts #engravingpen #gifts Engrave on Wood, Glass, Metal, Stone & More