This pack includes 31 IBM-formatted 3½-in. floppy disks with a capacity of 1.44 MB each. The disks are suitable for use with a variety of devices and are perfect for those who need to store and transfer large files. The brand is IBM, and the unit type is a unit. The disks are sold as a custom bundle with no additional accessories included. The disks are made in the United States and are compatible with a range of devices. They are ideal for those who need to store and transfer large files, and the high-quality construction ensures that they will last for years to come. With their reliable performance and long-lasting durability, these disks are an excellent choice for anyone who needs to store and transfer large files.