The Iomega ZIP DISK 100 Formatted for PC Lot of 5 is a set of external zip drives designed for use with PCs. These drives have a 3.5-inch form factor and offer a storage capacity of 100 MB. They feature a removable disk design and a write speed of 1.4 MB/s, making them ideal for expanding storage capabilities on computers. The lot of six includes black zip drives that are compatible with IBM-compatible PCs, providing a convenient and efficient solution for data storage and transfer.