About this item Premium Material - Made of sturdy steel, firm and rust-free. With characteristics of strong penetrating power, durable and will not be easily damaged. Ergonomic Design - Ergonomic handle, saving labor, can punch materials by hand or on a table. Suitable For - Capable of punching through materials up to 60 mils thick, ideal for students, teachers, office workers, designers, artists, etc. Suitable for - Suitable for making gift cards, paper crafts, ID cards, laminating, scrapbooking, photo and PVC etc. Note: If the paper is accidentally stuck, you can restore it by pulling the two handles of the rounder. Please install it according to the pictures before using it to avoid horrible rounded corners, unless you want an irregular shape.