[ERGONOMIC DESIGN]Our diamond steel sharpener has a 2-stage sharpening system that can sharpen your knife edge extremely sharply. The first stage of diamond sharpening repairs and straightens the damaged blade, and the second stage performs clean restoration and polishing. [CHARGING METHODS]Plug and play for household sockets, mobile power supplies, computer USB, etc. [QUICK, SIMPLE AND CONVENIENT]It only takes 1-2 minutes to sharpen the knife, no need to water, save labor and time. [PAINLESS]Drag the knife back gently without tilting it completely. [NO ERROR]Will not sharpen sharp tools, because the grinding wheel can automatically adjust to the pressure when sharpening. The 4 suction cup feet hold the sharpener firmly in place during use. Name: Electric knife sharpener Power mode: USB plug and play (including power cord) Voltage: 5V Rank: Four Switch: manual Anti-slip: Yes (suction cup base) Grinding wheel: replaceable Application: All Kinds of Scissors, Knives, flat-blade screwdriver Colour: black/white Material: PP + diamond Size: 22x9x7.5cm Package Contents: 1 * Sharpener 3 * Grinding wheels 1 * Cleaning brush Only the above package content, other products are not included. Note: Light shooting 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.