<ul><li>Eyepiece Mounting Size: 30.5 mm. Microscope Structure: upright.</li><li>Item name: microscope head; Total Magnification: 10X, or 20X, or 30X, or 40X.</li><li>Objective: 1X, or 2X, or 3X, or 4X; Objective Working Distance: 1X-55.83mm(2.20"), 2X-81.05mm (3.19"), 3X-61.03mm(2.40"), 4X-57.7mm (2.27") Eyepiece: WF10X.</li><li>Easy to attach, convenient to use,allows bright and clear image.</li><li>We is committed to pursue highest quality and offer timely customer service. We are dedicated to providing you with 100% satisfaction solution to address your any concern.</li></ul><br><br>

Lab Microscope Slides Microscope Binocular Head for Stereo Microscopes with 10X Magnification Eyepiece Wide Field of View Microscope Accessories Microscope Parts (Color : Tilt, Size : 40X)