Product Information: Primary Material: Metal, Stone Product Name: Swifty Tool Sharpener Product Description: The incredible cordless motorized knife sharpener, as seen on TV, offers precision power sharpening for knives, scissors, and household tools. It features a built-in guide that holds the blade at the perfect angle, ensuring professional-grade sharpening. The high-speed rotating sharpening stone both sharpens and hones the blade's edge. A catch tray is included for metal shavings. The sharpener requires 4 AA batteries, which are not included