Slice® products are made with a high-tech ceramic called zirconium oxide. Safer than metal blades. Up to 11X longer lasting than steel. 3 blades/pack, 6 packs/box, 8 boxes per master case, total of 48 packs per master case). Minimum order of 6 Packs. Priced per each pack.Use only with: Utility Knife (#2110550, #2110554, #2110558), Folding Utility Knife (#2110562), Utility Scraper (#2110591, #2110593), Manual Carton Cutter (#2110585)