EZE-LAP Diamond Pad Knife Sharpener - Model LThe EZE LAP Diamond Pads are precision tools which are milled flat and will stay flat to maintain a tools integrity. They retain their sharpening ability for years of use and they will not dish out like oil and sandstones. No oil or lubrication is needed and they wont break if dropped. These sharpeners are ultra portable and can be kept at home, on the boat, in the car, or on your belt. Pack Contains: Blue = Super Fine Red = Fine Purple = Medium