Fangrui Product Details 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 More Viewing Area Compared To Standard Eyepieces. This Wide-angle Lens Provides Exceptionally Bright And Clear Images, Enh