Features 1、Multi-functional adapter of stereo microscope and biological microscope with long service life. 2、The C-type installation method is adopted, and the installation and replacement method is simple. It is suitable for a biological microscope with an outer diameter of 23.2mm. 3、Exquisite workmanship, stable and reliable performance, easy to observe the internal structure of small objects. 4、Selected high-quality metal materials, with good durability and stability. 5、With 30mm and 30.5mm adapter rings, the accessories are complete and have strong practicality. Specification Condition: 100% Brand New Item Type: Microscope Adapter Material: Metal Applicable Biological Microscope Outer Diameter: Approx. 23.2mm / 0.9in Adapter Ring Diameter: Approx. 30mm / 1.18in, 30.5mm / 1.2in Package List 1 x Microscope Camera C-Mount Adapter 1 x 30mm Adapter Ring 1 x 30.5mm Adapter Ring