German pencil tip protector and eraser set. Both made to fit on the ends of the pencil. The protector is quite handy to have so you can store your pencil in a pocket without it writing on everything. The erasers haven't aged well and may not work anymore. You could probably remove the old one and reinstall a new one without much difficulty. There may be some light rust. Price is for a set of one tip protector and one eraser.
Pencils are available in our Office Supply Section.