<ul><li>Mounting Size (in diameter): 30 mm or 30.5 mm.</li><li>Magnification: WF10X / WF10X / WF15X / WF20X / WF25X / WF30X.</li><li>Field of View: 20 mm / 22 mm / 16 mm / 10 mm / 12 mm / 10 mm / 9 mm.</li><li>Professional and practical design with beautiful appearance, easy to carry and use.</li><li>Usually used in laboratories, schools, teachers, sample observation, eyepiece protection, etc.</li></ul><br><br>

Microscope Accessories Kit Wide Angle High Eye-piont Eyepiece Optical Lens for Stereo Microscope 30 mm or 30.5 mm Mounting Diameter WF10X WF15X WF20X WF25X Microscope Slides ( Color : WF20X-10-30.5mm