KitchenIQ 50009 Edge Grip 2 Stage Knife Sharpener- Soft Grip Handle For Comfort And Control- E-book Gift For You@ V-Grip Bottom for use on edge or counter High-quality metals with a range of color tones Soft grip handle for comfort and control Does not sharpen serated edge blades Easy to use. The product may have copper brazing/solder used to bond two metals together.