Apparently this is paper that has a reinforced margin surrounding the three hole punch to help it last longer. This longer life is useful when students take notes throughout the year. But I think if your school, like many, has devices for students and uses Google Apps for Education then I have a better way - Google Slides.
The key to using Google slides to create a digital notebook is to resize the slide dimensions to 8.5 x 11 to mimic conventional paper. This can be completed under the 'file' menu and selecting page setup. The default size of the slides is 'widescreen 16:9' but if you select custom you can resize the slides to any size you would like.
Once completed, the template is set. Each slide that you add will also be this size. Another benefit of using google slides is that as you add text boxes and graphics there are guidelines that appear to help line up and center items for optimal appearance. Not to mention it will automatically save.
Students could also import an image straight into their notebook. For example if the students were completing a science experiment they could use their webcam to insert a picture of their actual event. This increase in authenticity also increases their ownership. The quick screencast below provides an overview of the whole process.