Book Page Holder

I've seen these on Pinterest, a little thing your thumb fits into to keep the pages of a book wide open. It spans 4 inches long, the center hole arches inward to tighten around the tip of the thumb to secure it in place. Only available in basic plastics. Say goodbye to the days when you have to juggle the book around with your thumb and pinky, or use two hands to read a book. Now you can read with one hand and sip a refreshing beverage with the other. Bookworms, you're welcome.