Stone Creek(TM) - Flip Up Magnifiers Stone Creek(TM) flip-up magnifiers are a great way to see up close when you&';re out on the water. They clip onto your sunglasses or "cheaters" so you can easily flip them down for even more magnification. They&';re always ready to use, and they come in a variety of magnifications to suit your needs. Here are some of the benefits of using fisherman&';s eyewear clip-on magnifiers: They&';re convenient and easy to use. Just clip them onto your hat or visor and you&';re good to go. They&';re affordable. Clip-on magnifiers are much cheaper than a separate pair of prescription magnifying glasses. Several magnifications. 1.5, 20., 2.5, 3.0 and 4.0 so you can choose the power that&';s right for you.