The advanced ceramic blade of the Kyocera peelers stays ultra sharp 10 times longer than traditional blades. It will never rust, pit or corrode. This peeler glides smoothly and won't remove too much food (a common problem). A Kyocera CP-20 peeler has an ergonomic handle, the blade can be used vertically, horizontally or in a 45-degree angle. It won't brown foods or transfer a metallic taste or smell. The blade is 4 cms long.