We saw this at a Hastings a while back and then couldn't find it again for years. This is made of durable plastic. Though its hard to tell what size to get. When we bought it there was no way to measure. So we ordered a large and an extra large for my husband. All I can say is that he loves it. If you wish you could hold books with one hand this is for you. We didn't get to pick a color so be warned if you're a picky guy you could end up with purple. Its very simple, place the corner into the cease of the book and let the wings hold the pages down. When you get toward the end the wings do block words at times, depending on the texts layout.