What is the difference between a sleeve and a hub?
There are a few options available for packaging your YBI CD as a supplement with your yearbook. The most popular option is to use a hub inside your either the front or back cover of your yearbook. A hub is a foam circle that mounts to the printed book and fits precisely the center hole of your disc, thus holding the disc in place with the printed book. A sleeve is clear plastic sleeve that fits the disc comfortably inside it. The backside of the sleeve uses an adhesive to permanently attach to inside front or back cover of your yearbook. The school must attach both the sleeve and the hub.
