We use them for bow centers. Honestly, they are pretty pricy. They are heavy and require HUGE moq orders from overseas to get a "good" price.
However, when you consider the mark up from wholesale to retail, .75 isnt an awful price.
You may also want to consider flat back buttons such as these
at Little pea boutique.
Cathi is a dream to work with. She is quick, reliable and has a good quaility product.