All-optical glass lens, bright and clear vision The lens is coated with high light transmittance and high refractive index, making the image brighter and clearer. [Easy to Observe] - easy to adjust the angle, calibrate the position of the measuring object, easy to observe. Adjustable diopter, different eyes can also be clearly observed. Metal Body: The eyepiece body of the optical glass wide-angle microscope is made of all-metal material, which is light in weight, high in strength, good in rigidity, , fine in workmanship, quality assurance, firm and not easy to break. Usage: The eyepiece has a wide field of view, making viewing more comfortable, the lens not corrode, wear and tear, and have a long service life. Product name:WF10X stereo microscope High eye spot wide-angle eyepiece Eyepiece model:WF10X/22 Interface diameter:30mm Field diameter:22mm Application:Stereo microscope eyepiece Color:Black Material:Aluminum Alloy + Glass Package Contents: 2 * eyepieces 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.