The Adjustable Stereo Microscope Stand Holder Articulating Arm Bracket is designed for use with stereo microscopes. It features an articulating arm bracket that allows for easy positioning of the microscope. The stand holder has a 50mm diameter, making it compatible with various microscope gear accessories. It is made of sturdy materials for stability and durability. The stand holder is easy to install and use, making it a convenient accessory for any microscope setup.