Usage Tips:Enhanced Eye Comfort: Utilize this 10X widefield eyepiece to significantly reduce eye strain during prolonged microscope use. Its design focuses on safeguarding your eyesight, making it ideal for extensive research sessions and detailed observations in educational or professional settings. Precision Fit for Microscopes: Specifically crafted for lens cones with a 23.2mm diameter, this eyepiece ensures a seamless fit for most standard compound biological microscopes. Its compatibility and ease of installation make it a must-have for enhancing your microscopic studies. Versatile Use Across Devices: This eyepiece is universally compatible with a wide range of compound biological microscopes. Whether for academic, laboratory, or personal use, it offers a practical upgrade to your existing equipment, ensuring broader application and utility. Superior Viewing Experience: Experience over 50% more viewing area compared to standard eyepieces. This wide-angle lens provides exceptionally bright and clear images, enhancing your ability to observe fine details and complex structures without compromising on image quality. Optimal Observation Comfort: Designed for comfort, this 10x magnification eyepiece allows for detailed and prolonged biological examinations without discomfort. Its ergonomic build and superior optical design ensure a satisfying and strain-free viewing experience. Specification: Color: Black Material: Plastic Model:DM-WF001 Magnification Power:10X Connector diameter: Size: 23.2cm/9.1in Weight: Approx.50g/1.8oz Package Contents: 1 x eyepiece Only the above package content, other products are not included. Note: Light reflection and different displays may cause the color of the item in the picture a little different from the real thing. The measurement allowed error is +/- 1-3cm.