Features METAL MATERIAL This single arm bracket is made of aluminum alloy, lightweight and corrosion resistant, providing extra durability and stability. ADJUSTABLE DESIGN The 360 degree multi-wave rotating function allows this microscope arm stand to position the microscope head in any position or angle. MAIN PURPOSE: Extends the length of the digital microscope to achieve wider and larger fields of view in microscope photography and video recording. EASY TO INSTALL: digital microscope stand with clamp bracket, just install the upgraded column on the microscope and screw on, has good practicality. STANDARD SIZE The universal stand is single-arm, the arm length is 29mm and is suitable for focusing mount holes with a diameter of 25mm. Specification: Item Type: Digital Microscope Mount Material: stainless steel, aluminium alloy. Application: Display Mount Arm length: approx. 29 mm / 1.1 inches. Applicable hole diameter of focus bracket: approx. 25mm Package list: 1 x holder. 1 x clamp holder. Package List 1 x Bracket 1 x Clamping Bracket