Come and see our amazing products. The rectangular lens is especially design to simulate the way we naturally view things from left to right, the magnifying lens covers large viewing area without having your hands move all the time, lens is measured 4.35"x 2.7" and magnifies up to 300%. Made out of optical grade acrylic which is lighter and more scratch-resistant & shatterproof than glass while provides the same clarity level. The packaging box display 3x but the product inside is 3x main lens +5x bifocal lens located at the corner- It is perfect for reading/viewing small prints Map, Newspaper, Magazine and also great for eye conditions such as aging eyes and macular degeneration. Pls confirm further with us if any query about packing info, inventory status and time schedule.