Features: The viewing field of wide-angle eyepiece is more than 50% larger than that of normal eyepiece. A very practical microscope eyepiece, effectively enlarged the field of view. Image bright and clear, the effect is clearer. The eye is not easy to be tired when observing, protect your eyesight. Easy to attach on objective, just screw it on. Specification: Material: Optical lens & Aluminum alloy Weight: 40g/1.4oz Magnification: WF10X View: 16mm Interface diameter / mounting size:23.2mm/0.9inch Package List: 1 x Microscope Eyepiece .wang-edit-text{ font-family:'Arial' !important; } .wang-edit-text table { border-top: 1px solid #000; border-left: 1px solid #000; } .wang-edit-text table td, .wang-edit-text table th { border-bottom: 1px solid #000; border-right: 1px solid #000; padding: 3px 5px; } .wang-edit-text table th { text-align: center; } 1The viewing field of wideangle eyepiece is more than 50% larger than that of normal eyepiece. 2A very practical microscope eyepiece, effectively enlarged the field of view. 3Image bright and clear, the effect is clearer. 4The eye is not easy to be tired when observing, protect your eyesight. 5Easy to attach on objective, just screw it on.