Features [Stable Microscope Mount] The stereo microscope fix ring ensures a secure and stable attachment of the microscope to the pillar, preventing any downward slippage. [Sturdy Construction] Made with premium aluminum alloy and plastic materials, this limit fix ring is built to last and can withstand long term use. [for 25mm Pillars] Designed specifically for 25mm pillars, this limit fix position holder provides a perfect fit and secure mounting. [Easy Installation] Simply use a screw to secure the fix ring to the pillar, allowing for quick and easy installation and disassembly. [Enhanced Microscope Experience] With the help of this limit holder, your microscope usage is enhanced, allowing you to focus more on your observation without any distractions. Specification: Item Type: Stereo Microscope Fix Ring Material: Aluminum Alloy, Plastic Model: KP 025 Column Pillar Diameter: Approx. 25mm/0.98in Package List:1 x Stereo Microscope Fix Ring   1 x Screw Package List 1 x Stereo Microscope Fix Ring 1 x Screw