Item Type: Auxiliary Objective Lens Material: Aluminum Alloy, Optical Lens 1High Magnification: Supports great magnification, the auxiliary objective lens ensures clear imaging, which will simplify the observation. 2The Parallel Light: Adopting premium parallel light design, the monocular objective lens can effectively reduce light reflection in work. 3Standard Objective: Designed to have standard C mount and 24mm connection diameter, the objective eyepiece comes with wide compatibility. 4Great in Materials: Consisting of premium optical lens and aluminum alloy materials, the monocular microscope lens is very durable for using. 5Simpler to Install: Light in weight and compact in size as well, the microscope lens is very convenient to install within several minutes.1 x Auxiliary Objective Lens