1、Microscope Base: This microscope stand can hold your microscope with excellent stability, thus largely simplifying the experiments and observation. 2、Perfect Fitting: The overall size of this microscope stand base is 200 x 130 x 250mm, and it suits perfectly for 35mm, 405mm and 50mm microscopes. 3、Gooseneck Light: Equipped with dual gooseneck lights that support stepless adjustment on brightness, providing sufficient lighting for your working. 4、Aluminium Alloy: Having been through great workmanship, the aluminum alloy material has high strength that can withstand up to 20kg, durable for use. 5、Easy to Install: Thanks to the standard design, the microscope support stand is very convenient to install and assemble, secure and reliable. Item Type: Microscope Stand Product Material: Aluminum Alloy Applicable Diameter: Approx. 35mm / 1.38in, 40mm / 1.57in, 50mm / 1.97in 1 x Stand Base 1 x Support Rod 2 x Adapter Ring Replacement 2 x Wrench 1 x Screw 1 x Power Adapter