Professional Electric knife sharpener afilador cuchillos diamond sharpening stones system Household Sharpener AY340-SZ+Description Built-in guide holds the blade at the perfect angleProfessional grade high speed rotating sharpening stone sharpens and hones the blades edgeIncredible cordless motorized knife sharpener - Precision power sharpeningIdeal for knives， precision tools， scissors and household toolsKnife Sharpener includes catch tray for metal shavingsPackage Contents:Electric sharpener *1The sharpener work with 2 AA batteries（Batteries are not included）