Chef'sChoice Pro Sharpening Station 130 : Fool-proof sharpening and polishing. In just seconds, ensure precision-sharp blades and extend the life of all your knives -- serrated, straight, kitchen -- and even pocket knives. The compact M130 employs 100% diamond abrasives, super-hardened miniature steel, and revolutionary stropping disk for right-every-time sharpening and polishing. UL*/ETL and Canadian approved. 125 watts. 9 3/4"L x 4"W x 4"H. Product Features For all brands of fine edge and serrated knives, pocket and sporting knives and reconditioning of heavily worked knives; easy to use and only takes 60 seconds Razor sharp steeled edge for perfect control while cutting Re-sharpen knives in 10 seconds Sharpens entire blade, tip to bolster Stage 1 sharpens edge and prepares it for subsequent steeling using 100% diamond abrasives Stage 2 uses super hardened miniature steel and precision guides to develop a shaving sharp edge with ultra-sharp microscopic serrations that provide a "bite" superior to professionally steeled edges Stage 3 polishes using a patented, flexible abrasive disk in combination with precision guides that create a smooth, ultra-sharp fine edge Precision angle guides for skill free operation No lubrication is needed for any moving parts, motor, bearings or sharpening surfaces. 3-year limited warranty *Underwriters Laboratories is an independent, not-for-profit product-safety testing organization.