JS-40 is a 3″ compact, easy to use 2.5x power magnifier for home, school or office. Its crystal clear acrylic lens gives you a sharp distortion-free view. The HandHeld™ magnifier has a 5x power bifocal lens, which allows you to see even the finest details with ease. This magnifier is a great low vision aid and assists in reading small print. At only 2.6 oz the HandHeld™ magnifier is lightweight and comfortable to use for a long period of time.