I tried to use this product nearly every day for school work. It jammed almost every time. I had to dig out the jammed paper with a knife. I had to rip out my papers and re-print them because they were ripped. This is the most ineffective cheap hole puncher I have ever used. I do not recommend it.
This hole puncher can be easily adjusted to fit the size of paper being used. It saves time and energy by working efficiently and is easily stored when not in use.