7/8" aluminum screw post in Black are a great way to spruce up your projects. They are perfect for scrapbooking, book binding, swatches, menus, and so much more. The post length is 7/8" and the diameter is 3/16". The post length is the maximum binding thickness (inside length.) We recommend that you measure your document to obtain the best fit. We also recommend that you punch or drill a 1/4" hole in your documents to accept these posts. Quantity per package is 20 for these aluminum screw posts. We can supply larger quantities on request. Please call for a quote on orders of 30 or more packages.