Cordless electric engraving pen, mini nail art set, hand-carved wood carving kit with complete accessories. USB charging, quiet operation. Powered by 300mAh lithium battery, 3 speed options, the body is made of alloy material, which has good heat dissipation, making your artistic DIY creation easy. The jewelry etching tool has smart overload protection, so you don't have to worry about engine damage. Small and portable, the whole machine weighs only 40g. The mini engraving machine has a built-in power switch design, so there is no need to worry about accidentally touching the switch and stopping the operation. Versatile Precise Control: Can be used to engrave, sharpen, grind or polish wood, plastic, tile, glass, ceramic, stone, metal and more. Color: Silver. Material: Metal. Package Contents: 1 * Engraving Pen, 1 * Data Cable, 1 * T-Shape Grinding Head, 2 * 2.35 Shank Bar, 30 * 2.35 Rotary Drill, 2 * Drill Bit (1.0mm, 1.5mm), 3 * Sanding Discs (16mm, 20mm, 25mm), 3 * Stainless Steel Cutting Discs (22mm, 25mm, 32mm). Only the above package content, other products are not included. Note: Light 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.