The Minibrite Pocket Magnifier, model PO-55, is a folding pocket magnifier with light designed for use by individuals with low vision. This pocket-sized magnifier offers 5x magnification through its acrylic aspheric lens, and it comes equipped with a built-in LED light for use in dark spaces. Other features include a slid-out protective plastic sleeve that conceals the lens and protects it from scratches when not in use. POWER: Uses 3 AAA batteries (not included). DIMENSION (LxWxD): 4.25 x 2 x 0.75 inches. The magnifying lens (LxW) is 1.5 x 1.4 inches. WEIGHT: 1.6 ounces.