TEQIN Lightweight Head Magnifier Adjustable Magnifying Glass Loupe Visor Hands Free Eyeglasses Bracket/Headband Interchangeable Headset Magnifier with 2 LED & 5 Different Lenses(Upgraded Version) Extended lenses in the frame is arranged below the middle and has open a "U" shaped notch. The design allows the eye lens to be closer which increases the field-of-view to be wider, and observe the object is more easily accomplished. Movable lens slot is used to adjust the focal length between lens and object along with the distance between the lens and eyes Lens and bracket attach to the internal/external meshing structure to provide a firm but comfortable fit while viewing and reading. Both parts can be repeatedly turned over when they are not in use. The entire unit is solid and durable. Lens angle and LED light source irradiation angle can be adjusted to ensure accurate irradiation of light source on the surface of viewed object, providing greater accuracy. Package Includes: 1 x Eyeglasses Bracket; 1 x Spare Headband; 5 x Magnifier (1.0X, 1.5X, 2.0X, 2.5X, 3.5X, case included); 1 x User Manual