Features FLEXIBLE AND ADJUSTABLE: Heavy duty microscope arms and clamps allow the microscope to easily swing into place when needed and when not needed, and the metal holder can adjust the microscope lens height up and down, as well as rotate back and forth to ad SUPER RUGGED: Robust and versatile, which is the perfect microscope boom for laboratory and industrial applications, designed to deliver superior value without compromising performance 360° FREE ROTATION: 360° flexible rotating arm with clamp and limit ring allow you to operate at any angle and height you like LONG WORKING DISTANCE: The maximum height of the microscope stand can reach 700mm, providing you with enough working distance STABLE AND NON ROCKING: The arm hold the microscope lens stably, ensuring that the lens does not shake when used, convenient for optimal observation Specification: Item Type: Microscope Articulated Arm Stand Material: Aluminum alloy Lens Fixing Ring Size: Approx. 50mm / 1.97in Maximum Height: Approx. 700mm / 27.56in Package List:1 x Microscope Articulated Arm Stand   1 x Lens Holder 1 x Accessory Package List 1 x Microscope Articulated Arm Stand 1 x Lens Holder 1 x Accessory