The Lansky Controlled-Angle Sharpening System is a guided knife sharpening system that ensures your knife gets sharpened to the exact bevel you specify every time. This system is designed to give your blade a professional, razor sharp edge regardless of your sharpening ability. Excellent for beginners and advanced users alike. The original and legendary Controlled-Angle System is the ultimate in Knife Sharpening technology. Set includes 3 stones, coarse, medium and fine. Made in USA.