Magnification: WF10X colour:black Material:Aluminum alloy + glass size:View: 16mm Reticle Scale: 0.1mm Interface diameter / mounting size: 23.2mm/0.9inch Package Contents: 3 * Microscope Eyepiece 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. The eye is not easy to be tired when observing, protect your eyesight. A very practical microscope eyepiece, effectively enlarged of view. Easy to attach on objective, just screw it on. Image bright and clear, the effect is clearer. The viewing field of wide-angle eyepiece is more than 50% larger than that of normal eyepiece.