3.5-inch Floppy Disk disks are a magnetic data storage format with a flat circular plastic disk that has a magnetic coating (similar to magnetic tapes) inside a protective sleeve.  The industry consensus standard 3.5-inch diskette was released in 1982.  The 3.5-inch (93.7 x 90.0 x 3.3mm) diskette has a hard shell and stored 438Kbytes, 720Kbytes, and then 1.44Mbytes in 1986.  A 3.5-inch diskette could hold 30-seconds of video in 1996.  There were other magnetic disk formats.  Sony discontinued floppy diskette production in 2011.

PRICES:
TRANSFER 3.5-inch floppy disk: $5 per Floppy Disk.