The 5¼” floppy disk is a large, soft and quite fragile piece of plastic and, when not used, must be kept in their paper pocket.

With a capacity of 170kB on the floppy disk, you are good to go. But it is possible to double the capacity, by making a small notch in the side of the floppy disk – almost like magic.

Though the floppy disk is rather fragile, I have heard some crazy stuff done to them – and still be working.