For slicing fruit, vegetables, and boneless meat, the VOS advanced ceramic knife has no equal. Ceramic's superior edge retention, chemical purity, and light weight make it ideal for straight slicing.
Even so, ceramic knives are intended to complement - not replace - your other cutlery. Use steel knives for carving, prying, boning, cutting frozen foods, and slicing cheese. The Blade material is Zirconia, Its 8.5 on the Mohs scale of mineral hardness.