Easy to use just put paper into the gear, and turn any of the two knobs, you want to make deeper corrugated texture on paper This paper crimper paper waving shaper making tool is good for art craft, scrapbooking, school project, papercraft and craft Our paper crimper paper craft tool crafted from abs, light weight and easy to handle Suitable for children, student, adult and artist Multifunctional paper crimper tool great for making the fold and waving shape Add a touch of unique decoration for your art craft The rolls could crimp paper up to 6inch Suit for card stock, colorful paper, and more