It's a floppy silicone calculator I bought on Ebay for $2.89. I paid too much for it.
I don't know why a floppy calculator exists. There are so many different types of calculators out there, and often the stylistic choices of the designers are baffling. Why use such a stupid font for the numbers and functions? Why is there a magnet on the back?
Do I recommend this calculator? Of course not.