Features: Do not damage the tool. Safe silents operation. Groove-design, slot position, blade-and grinding wheel closely fit. Slotted screwdriver-blade is suitable for grinding slotted screwdriver. Scissor sharpener is suitable for grinding various kitchen scissors. Grind the knives edge carefully, which is suitable for the daily maintenance of the tool-blade. Roughes grinding mouth is applicable to tools that are not open or-blunt. Notice: 1.Actual color may be slightly different from the image due to different light effect 2.Please allow 1-3cm deviation due to manual measurement Description: Material: 304 Stainless Steel + ABS Battery Capacity: 1200mAh Battery Life: Approximately 2 hours Charging Method: Built-in USB charging Rated Input Voltage: 5V= Battery Voltage: 3.7V= Rated Input Current: 1-2A Rated Power 5W Package List: 1x Hybrid-Knives Sharpeners