This 6-hole punch for system notebooks is very convenient. According to the manufacturer, it can punch up to 5 sheets of PPC paper. Used a few times and has been stored in a drawer for a long time. The outer plastic case is missing, and the paper box is deteriorated. I tried punching holes in copy paper, and it works smoothly without any problems. You open it by setting the switch on the back to FREE, so you can keep it locked when not in use. I tried to shake out all the punch waste, but I apologize if any remains. Please be understanding. Due to the thickness, it will be shipped without cushioning material and in simple packaging. If you would like bubble wrap, I will add the shipping cost and change the price, so please be sure to comment before purchasing. If you can use it, please consider purchasing it.