13-point snap blades. When the blade gets dull, simply snap off the tip revealing a new sharp blade. Coated with a thin layer of oil for rust protection. Used for: cutting cardboard packages, paper, plastic, canvas, cloth, film, model making, pumpkin carving, card-stock, foam boards, tape, wood, polymer clay, vinyl, cork and other light-weight materials. Used by:  hobbyist, scrapbook artists, architects, paper artists, graphic artists, designers, crafters, homeowners, contractors and can be found in most garages.