The Santoku Pull-thru Knife Sharpener is a more specialized knife sharpener. Likethe other Pull-Thru"s, it has an ergonomically designed, soft grip handle and non-slip rubber feet to ensure comfort and steadiness when sharpening. This special sharpener features pre-set sharpening angles designed to keep Santoku and thinner Asian edge blades in prime condition. Both slots use crossed-ceramic rods to hone your knife"s blade to razor sharpeness.Features: Santoku (White Ceramic rods) 30 degree sharpening angle for thinner Santoku knives Standard (Brown Ceramic rods) 46 degree sharpening angle for regular straight edge knives.