You don't actually need a press to set fabric cover buttons. All of the cover buttons we sell include a manual assembly kit so you can do it by hand, like this.
But if you'll be setting a lot of them, a press will make it easier on your fingers.
This video explains what tools you'll need if you want to use a press and how to do it:
Optional: Leave a note in the Order Notes box at checkout requesting that your order be reviewed for completeness. We'll contact you if anything appears to be missing or if your tools aren't compatible with your fasteners.