Feature: 1. [Imaging Clearly] The microscope eyepiece has high light transmittance, high refractive index, and the imaging is brighter and clearer. 2. [Fine Workmanship] This microscope eyepiece mirror body has good workmanship and quality assurance, so you can use it with confidence. 3. [Wide View] Viewing is wide and more comfortable, the lens will not be corroded or blurred, and the service life is long. 4. [Widely Use] Adopts a standard interface, the interface diameter is 23mm, and it can be used with microscopes of the same aperture. 5. [Material] Made of high quality aluminum alloy and optical glass materials, the microscope eyepiece is sturdy and durable. Specification: Item Type: Microscope Eyepiece Material: Aluminum Alloy, Optical Glass Purpose: Magnify and Observe Objects Features: Wide Angle Eyepiece, High Eye Point, Large Field of View WF-16X: Magnification: 16 Field of View: Approx. 13mm / 0.5in Interface Outer Diameter: Approx. 23mm / 0.9in Lens Diameter: Approx. 15mm / 0.6in Height: Approx. 40mm / 1.6in Coating: Ant Reflection Coating WF-20X: Magnification: 20 Field of View: Approx. 10mm / 0.4in Interface Outer Diameter: Approx. 23mm / 0.9in Lens Diameter: Approx. 10mm / 0.4in Height: Approx. 32.5mm / 1.3in Coating: Anti Reflection Coating. Package List: 1 x Microscope Eyepiece Note: Keep away from direct sunlight