Item Type: Objective Lens_x000D_ Material: Aluminum Alloy, Optical Lens_x000D_ Lens Connection Diameter: Approx. 24mm / 0.94in 1STANDARD DESIGN: The auxiliary objective lens has standard C mount, 24mm connection aperture, ensuring stable and reliable connection. 2OPTICAL LENS: This objective lens uses optical lens to provide clearer and sharper microscopic images, greatly improving work efficiency. 3ALUMINUM ALLOY: The objective lens frame is made of excellent aluminum alloy, lightweight and durable, making it easy to carry and use. 4PARALLEL BEAM: This parallel beam auxiliary objective lens provides more accurate observation results, suitable for monocular microscope. 5APPLICABLE SCENE: This objective lens is suitable for observing organisms, plants, insects, etc., to meet different experiment or learning needs.1 x Objective Lens