Welcome to the store! Store Name: Chong Qing Shuo Yue Ke Ji You Xian Gong Si This microscope workbench can be adjusted up and down to meet your requirements. Easy to install and remove. Adjustable height up to 6 inches. Comfortable to carry. This stand features a measuring scale to determine the exact size of objects you are observing for precise assessments or damage evaluations. Portable holder for USB digital microscope, max 1.2 inches in diameter. It can help the microscope rotate in all directions. Ring Diameter: 3.1 cm / 1.2 inches Used For: USB Digital Microscope Item Weight: 111g Color: Black Material: Plastic Size: 16 x 12 x 15.3 cm Package Contents: 1 x Digital Microscope Desk Stand Only the above package contents are included; other products are not included. Note: Lighting and different screens may cause the color of the object in the image to slightly differ from the actual color. The allowable measurement error is +/- 1-3 cm. Your satisfaction is our highest priority. We will provide you with the best service. If you find any issues after receiving the product, such as damage, incorrect quantity, etc., please contact us immediately so we can provide you with the best solution!