Check the listing for details. 8-inch Kas-Ette/10 Library Case Vintage Floppy Disk Storage Black Box Very Rare.. Color: Black, Condition: Used. Listed at 61.95 USD. 8-inch Kas-Ette/10 Library Case Vintage Floppy Disk Storage Black Box Very Rare. This rare and vintage 9.5" x 9" x 2" black Kas-Ette floppy disk case is perfect for anyone looking to store their 8-inch floppy disks in style. The foldable design and compact size make it easy to store and transport, while the sturdy plastic material ensures your disks stay safe and secure. The 8-inch Kas-Ette/10 model is an excellent addition to any collection, and its United States craftsmanship is a testament to its quality. It's not just a practical storage solution; it's also a great conversation starter. Don't miss the opportunity to add this unique piece to your collection. Used, with signs of aging and evidence of residue from sticker labels on the case's spine.