Feature 1[Imaging Clearly] The microscope eyepiece has high light transmittance, high refractive index, and the imaging is brighter and clearer. 2[Wide View] Viewing is wide and more comfortable, the lens will not be corroded or blurred, and the service life is long. 3[Fine Workmanship] This microscope eyepiece mirror body has good workmanship and quality assurance, so you can use it with confidence. 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. Item Type: Microscope Eyepiece Material: Aluminum Alloy, Optical Glass Model: W30X Purpose: Magnify and Observe Objects Magnification: 30 Times Outer Diameter of Interface: Approx. 23.2mm / 0.9in Lens Diameter: Approx. 21mm / 0.8in Height: Approx. 54.5mm / 2.1in Coating: Anti Reflection Coating Package List 1 x Microscope Eyepiece