This knife is equipped with a slim plastic body, it includes Excel Blades' #7 8-point snap blade (18mm). The blade is retractable and includes push-lock for safety. This economical knife works great for almost any heavy-duty task or project.  When the blade gets dull, simply snap off the tip revealing a new sharp blade. Perfect 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 lightweight materials.