Idahone V-Type Ceramic Knife Sharpener with Four Rods, Model CS-4 A fixed angle makes this ceramic knife sharpener fast and easy to use Made of top of the line high alumina ceramic--the best on the market From the legendary Idahone--trusted and used by professional and home chefs The base is made of fine oak and includes storage. Includes two course and two fine ceramic sharpening rods This is an excellent ceramic sharpener for both novice and expert