Hollow staples / Hohlnites can be used for everything!
For example, to attach a leather belt to a buckle. Or handles on a bag. But you can also put a number of them under each other for decoration!
You do not need a separate tool for this. There are attachments in the package to fix them. You only need a hammer. But if you still want to work a little faster and easier, then buy a vario-pressure wrench than a lot of hassle and blisters (click here).
Click here and view the tips and explanation how to place the hohlnites.
In the package:
3-4mm: 20 pcs
4-6mm: 15 pcs
6-9mm: 8 pcs