Features: glasses leg and headband switchable: press the side button to remove the glasses legs and mount the headband to ; This design solves the problem of heavy charging. Non-Falling Structure: The lens and lens case can be locked firmly by each other when you hear a clear clicking sound during installation, easy to turn on/off. Nose Bridge with Comfortable Fit: The nose bridge holder made of stainless steel, wrapped with a leather-like rubber jacket, can fit different users with absolute charging comfort. Adjustable Lens Angle & LED Light Angle: The lens angle and led light are adjustable, so that the light source is precisely cast to the objects to be observed, very convenient to use. Movable Lens Aperture: Move the lens slot module with sufficient force to adjust the focal length between the lens and the subject, and the distance between the lens and the eyesSpecification: Model: 81001-GMumb Material: Acrylic Lenses + ABS + MetalProduct Size: Approx. 250x200x10 0mm/9.84x7.87x3.94inch5 Kinds Magnification: 1X 1.5X 2X 2.5X 3.5X PackagePackage Includes: 1 x Reading Glasses1 x Elastic Band5 x Acrylic Lenses: 1.0X, 1.5X, 2.0X, 2.5X, 3.5XReq: 1. Please allow 0-1cm error due to manual measurement. Pls make sure you do not mind before ordering.2. Due to the difference between different monitors, the picture may not reflect the actual color of the item. Thank you!