Keep the dust away.
Cover those unused port holes on your Apple IIe. Rectangular port openings are numbered 1 through 12. Openings 1 through 4 are Medium size; 5, 6, 8, and 9 are Small size; and 7, 10, 11,and 12 are Large size.
Sold individually. Available in Brown for the regular //e or Gray for the Platinum.
Note: Some of the gray covers will show some of the same discoloration that the cases do.