Scrapbooking brads or fasteners are versatile and can be used in many ways on your layout.
They add a decorative element to you pages. They also can add functionality by holding other elements to your page, especially if you don't want to use adhesive on your page - such as in the case of vellum paper.
Fasteners are made up of a head and prongs. The head is usually round or square, but there are many shapes and sizes available. You can get them from 1/16 inch up to 5/8 inch and even up to 1 inch.
They are similar to the metal fasteners used in offices to combine many pieces of paper together temporarily.
To attach to your page, simply make a small hole in your papers where you want the fastener to be. You can do this by using a hole punch, an eyelet setter punch or even a sharp knife.
Then you can push the prongs through each piece of paper or cardstock, then flatten the prongs on the back of the paper.
More brads that can be used for your heritage pages:-