Feature:1. CLEAR IMAGING: High light transmittance, high refractive index, brighter and clearer imaging.2. EXQUISITE WORKMANSHIP: The mirror body is made of all metal materials, with fine workmanship and quality assurance.3. UNOBSCURED: It is more comfortable to watch, the lens will not corrode or blur, and the service life is long.4. SCOPE OF APPLICATION: Standard interface, all microscopes of the same aperture can be used.5. CAREFUL WELDING: Lightweight and practical, portable and light, without burden, strong performance and very stable.Specification:Item Type: Protective GlassesMaterial: Aluminum Alloy Optical GlassLens Diameter: Approx. 39mm/1.53inHeight: Approx. 15mm/0.6inThread Outer Diameter: Approx. 48mm/1.9inInterface: M48Purpose: Special Objective Lens for MicroscopeMagnification: 1 X.Package List:1 x Protective LensNote:No direct sunlight!