Beautiful design and durability built to last. quality materials used and tested extensively. adjust by Smooth "center-focus knob" and right eye lens , for focus even for kids. Foldable design, mini pocket size, to carry with. 3X magnification for indoor viewing, Specially suitable for theaters and horserace. Not a professional optical lens. It is more ornamental compared with the practicality. It is a perfect Birthday Holidays gift for her.