This is a box of 40 Memorex cool disks that are 3.5 inches in size and are formatted for PC use. These high-density floppy disks come in a sealed box and are perfect for storing data and files. The brand of these disks is Memorex and they were manufactured in China in the year 2003. The model number is 3210-6400 and they come with features such as colors and a free file box. These disks are a great addition to your collection of blank media and accessories.