I used this item for less than 5 minutes before it broke. I was punching single sheets of construction paper. Not thick stuff. On the 3rd sheet the little round thing bent and broke off. Staples is more than 20 minutes away so I just tossed them.
I purchased this to make arts and craft projects with my kids. It does not punch through folded paper well; we were making snowflakes. You have to apply a lot of pressure; use both hands to punch holes. Spend a little more money to get a better quality product.