Feature:1. Suitable for all kinds of knives, stainless steel knives, iron2. Various knife edges, rough grinding, fine grinding, scissors grinding3. High-speed powerful motor, long battery life4 USB charging, ready to useSpecification:Material: PVC+ Stainless SteelSize: 19*6.5cmCharging time: 2 hoursContinuous use time: 2 hoursGrinding speed: 10 secondsFunction: three gear power adjustmentBattery capacity: battery capacity 2000mAhApplicable to all kinds of knives: dull cutter/helicopter knife/multi-function knife/chef knife/fruit knife/chef knifeCaution:Due to manual measurement, there may be a 1-2 cm error in the size.Slight chromatic aberration may occur due to different monitors and camera animals, mostly all colors.∫