Our most popular kit has everything you need, making it possible for anyone to put a professional razor edge on any blade, from a small pocket knife to the larger chef's knives. This kit contains both a 8" coarse and ultra fine hone, the Razor Edge Guide for blades over 3", the Cub Guide for blades under 3", the Raz-R Steel™ and Edge Tester all in a hard-sided carrying case.