The Zip Drive 6-Pack 100 MB PC ZIP Brand Disks by Iomega is a set of storage disks designed for use with Iomega Zip Drives. These disks come in a pack of 6, each with a capacity of 100 MB, and are compatible with both PC and Mac computers. Made in the United States, these Zip Drive disks are a reliable and convenient storage solution for your files and data. The inclusion of jewel cases adds to the convenience and organization of these storage disks. Lightly used, look GREAT!!!