Features: The viewing field of wideangle eyepiece is more than 50percent 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: 28g1oz Magnification: WF16X View: 11mm Interface Diameter mounting size: 23.2mm0.9inch Package List: 1* Microscope Eyepiece The viewing field of wideangle eyepiece is more than 50percent 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.