These are what you use to reinforce the punched holes on each Quiet Book page. They are included in the page kits and swap groups. You can purchase them separately here if you are making extra pages for your book.
They are sold by the set, which includes 1 male and 1 female piece.
You will need the grommet tool to hammer them in place.
I love my new grommet tool! I was having trouble setting the grommets in my calendar quiet book with the tool I already had so I purchased the grommet tool available on the website and it works great. Super affordable and a great addition to my tool kit. Thanks Kailan!