Use these Slice Ceramic Utility Blades with the 10490, 10491, 10492, 10496, and 10594 Slice handles to trim or scrape your materials. The blades are made from 100% zirconium oxide and come in a pack of three. Each ceramic blade has a finger-friendly double edge, which is sharp for cutting materials but resistant to cutting skin, and the pointed-tip helps to initiate a cut. The blades are non-conductive, non-magnetic, non-sparking, and chemically inert, so they will never rust. Additionally, these oil- and lubricant-free blades are compatible with select other third-party handles, and are reversible, which doubles their lifespan.