Shop name:Chong Qing Shuo Yue Ke Ji You Xian Gong Si This microscope working station can be adjusted up and down to satisfy your requirement. Easy to install and remove. Adjustable height up to 6inch. & convenient to carry. This stand display a measurement scale to determine the exact size of the objects you are viewing for accurate appraisals or damage assessment. Portable holder for USB digital microscope, max 1.2inch in diameter. It can help the microscope rotate any angles. Ring Diameter: 3.1cm/1.2inch Apply for: USB digital microscope Item weight: 111g colour:Black Material:plastic size:16 x 12 x 15.3cm Package Contents: 1 x Digital Microscope Table Stand Only the above package content, other products are not included. Note: Light and different displays may cause the color of the item in the picture a little different from the real thing. The measurement allowed error is +/- 1-3cm.