CARL Glisser Slide Punch 30 holes With box I used this for about two years to file textbooks for junior high school entrance exams. There are some minor scratches, but there are no problems with use. Please see the image of the box for detailed instructions. As a bonus, I'll include loose-leaf rings. There are about 20. Shipping will cost nearly 1000 yen, so please refrain from price reductions.