Ceramic blade is made from Kyocera's proprietary zirconia material produced in Japan for exceptional quality and beauty. Ultra-sharp, pure advanced ceramic blades will maintain their edge up to 10x longer than steel blades. Lightweight and easy to use, the blade will not brown food, is rust-proof and resistant to acids. Safe design features corner notches to secure over a bowl and includes handguard for protection. Achieve smooth and even slices using the adjustable dial that provides 4 different cut thicknesses from paper thin to thick: 0.5mm, 1.3 mm, 2.0 mm and 3.0 mm.