Features Durable Zinc Alloy Construction - Crafted from high-quality zinc alloy, this holder is resistant to corrosion and wear, ensuring long-lasting performance in any lab environment Innovative Three-Jaw Design - The three-jaw mechanism distributes weight evenly, providing a secure and stable grip on your flasks and tubes for reliable experimentation Non-Slip Claw with Sleeve - Features a specially designed claw portion with a non-slip sleeve that enhances grip, preventing accidental slips and ensuring your samples stay securely in place Versatile Compatibility - Ideal for holding small flasks or cylindrical glass tubes, this clamp accommodates a variety of lab equipment to meet your specific research needs Adjustable Clamp Diameter - The prong clamp adjusts to fit circular objects with diameters ranging from 0-80mm (0.0-3.1in), providing flexibility for different lab setups and experiments Features: 1、Clear: This microscope objective has high light transmittance, high refractive index, brighter and clearer imaging, convenient and practical. 2、Metal Body: The lens body is made of all metal materials, fine workmanship, quality assurance, profional achromatic objective lens. 3、Comfortable: Objective lens has a wide field of view, making viewing more comfortable, the lens will not be corroded, blurred, and has a long service life. 4、Compatible: Universal standard interface, all microscopes of the same aperture can be used, and the scope of application is wide. 5、 Material: aluminum alloy and optical glass material, comfortable to handle, equipped with storage box, easy to store. Specification: Item Type: Objective Lens Material: Aluminum Alloy + Optical Glass Purpose: Special Objective Lens for Microscope Package List: 1 x Objective Lens 1 x Storage Bucket Note: 1. Do not expose to direct sunlight!betweendiv>2. Manual measurement, please allow some errors.between/div> Package List 1 x Objective Lens 1 x Storage Bucket