Ok it doesn't look like much. But if you love to read this is just a very cool gadget. The Thumb thing fits on your thumb like a ring for the first joint and simply used spread the pages of the book open.
I purchased my thumb thing at a small book store. I found it a great little tool for reading while in bed. I can hold the book and not worry about the pages folding over while reading. I also found it immense help while tracking while reading as a line reader with my niece. When you are done reading it is an awesome bookmark.
http://www.fun-n-nuf.com/prices.html (Wholesale only) You can contact them to see where you can purchase them in your area.