The Lansky Deluxe Diamond System is an effective way to sharpen all your sporting, hobby, and household knives. The patented Lansky System makes it easy for you to get the consistent angle you need for a professional edge on every knife. Made in the USA. The Lansky Deluxe Diamond System contains: Includes: Extra Coarse Diamond Hone, Coarse Diamond Hone, Medium Diamond Hone, Fine Diamond Hone The Ultimate in Sharpening Systems Technology Safe, Easy and Convenient to Use. The Lansky Controlled-Angle Sharpening System is designed to give your blade a professional, razor sharp edge every time. All systems include: Patented, precision-engineered, multi-angle, flip-over knife clamp. Sharpening hones on color-coated, finger-grooved safety holders One guide rod for each honing stone Specially formulated honing oil Extra long knife clamp screws Custom molded storage/carrying case to hold all system components Complete easy-to-follow multi-lingual instructions