1.5X 2X 2.5X 3.5X Double Lens Head-mounted Headband Reading Magnifier Head Wearing Magnifier Scope Premium-grade professional quality materials used in developing 4-level magnifying lenses for varied magnification. Head-mounted design, to easily fit your head and without discomfort. Easy to use and safe to clean. Comes with English instructions manual for ease of understanding. Optical-grade acrylic prismatic lenses for improved focus and reduced eye strain Great for hobbyists, jewelers, collectors, crafters and anyone needing a vision boost for fine work Fits over glasses and adjusts for comfort