The listing, Optical USB "finger mouse" - NEW in package has ended.
I bought two of these -- one for me and one for my partner. She didn't even want to try it, so I'm offering it here. New and unopened.
I tried mine and it's kind of fun, although a little hard to get used to. You actually wear it on your finger while you type, and then just "point" your finger down to move the cursor. No mouse pad is needed. There are no instructions, but you don't really need them.
I just plugged it into my USB port and it worked perfectly. No software, drivers, etc. Has right and left key buttons and a scroll wheel.
FREE SHIPPING (but I can ship ONLY to US). Smoke and pet free home.