Great for paper crafts or small studio projects! Smooth, rotating circular blade is safely housed in a plastic cutting head. Push down and glide in either direction for straight, perforated and wavy cuts. Change between the three cutting heads with a penny! Cuts up to three sheets of paper at once. Set also includes 3-7/8 x 14-1/2" self-healing cutting mat and free-floating, 13" clear plastic ruler, which allows you to easily cut both edges and interior holes on paper crafting projects. Lifetime limited manufacturer's warranty.