One-Eye Observation Suggestion - The focal length of this magnifier is 0.5-6.2 inches. So it is suggested to use one eye only to view the area only because focusing will fail if you use the lenses of both eyes at the same time. Removable stand and headband - The magnifying glass, the stand and hands-free LED headband are interchangeable. They not only effectively solve the problem of falling, but also ensure better comfort and reduce fatigue. Fully Adjustable - The eye magnifying glass can be rotated 180 degrees upward and down. The angle of the light can be adjusted left and right to ensure more precise lighting. 4 interchangeable lenses - 10X 15X 20X 25X, 4 different magnifications can be quickly interchanged. Meet your different working demands. Nice tool for small details - With portable design, the illuminated magnifiers are compact and lightweight for easy carrying. Ideal for close work, jewelry making, detailed painting, watch repair, collectors, needlework, etc.