Marbig cutter knives are metal knives with replaceable blades. They are ideal for a boundless variety of craft uses including card making, template and pattern cutting, working with photographs, making scrapbooks, model-making and so on | Heavy duty wheel lock cutter - features a wheel lock for added security | Blades are easily replaced by snapping off and Auto Lock for safety | The blade offers precise control for fine cutting | Cutter mini letter opener - easy to use | 2 spare blades