I just love the Marvy Uchida punches, however I have noticed they have some really crazy, confusing size names! Is a Mega punch larger than a Jumbo? What about the Gigantic Mega Large? If that were not confusing enough you then have the 1 3/8 inch versus the 1 1/2 size! Well, I found this on the Marvy website & want to share it! It is a single page, printable, guide to the the Marvy punches with images the actual size of their punches!! I loved this! Especially for purchasing online when you can not see the size of the punch! So here is the link! Just scroll down to the printable pdf file after you enter the site! I hope you find this helpful!