Features The biological microscope eyepi with a diameter of 23.2mm can be used for the 23.2mm lens barrel. The field of view of the wide-angle eyepi is more than 50% larger than that of the ordinary eyepi. The image is bright and clear, and the effect is clearer. The eyes are not easy to get tired when watching, protect the eyes. 100% brand new product, all refund if unsatisfied If you have any questions, please contact our professional customer service team. Features: -The biological microscope eyepi with a diameter of 23.2mm can be used for the 23.2mm lens barrel. -The field of view of the wide-angle eyepi is more than 50% larger than that of the ordinary eyepi. -The image is bright and clear, and the effect is clearer. -The eyes are not easy to get tired when watching, protect the eyes. -100% brand new product, all refund if unsatisfied If you have any questions, please contact our professional customer service team.   Specification: Condition: 100% Brand New Model: DM-WF009 Magnification: WF16X Field of View: 13 mm Weight: Approx. 40g / 1.4oz Mounting Diameter: Approx. 23.2mm / 0.9in   Package List: 1 * Eyepi Package List