I-Top Tool. You"re about to grip your new favorite tool! The I-Top transforms an ordinary brad into a custom accent in an easy 2 step process. Just place your paper and blank brads and give a little squeeze. It"s that easy! You just can"t top it! The I-Top tool comes equipped to make 16mm and 22mm brads: purchase the large carriage (item 001310) for the ability to make 28mm brads.