The RX-55 MagRX from Carson Optical is a 2.5x power clip-on Magnifier designed to fit on most standard prescription bottles. Simply clip the Magnifier to a prescription bottle and swing the magnifying lens outward to magnify text. The 2.5x power magnification will help avoid mistakes in reading vital dosage or instructional information listed in difficult to read fine print. Fold the magnifying lens on the MagRX inward against bottle when not in use for compact, easy storage.Also available in a lighted version- Lighted MagRX