Welcome to our store！</br>1、Application: Suitable for 42mm/1.65in diameter objective lens, suitable for 22mm/0.87in diameter connecting pillar, with 135mm/5.31in center distance. 2、Functional Microscope Accessory: The microscope adjustable focus holder helps to easily adjust the focus so that you can observe the object clearly. 3、Heavy Duty Structure: Focus stand bracket is constructed of high strength alloy material, rugged construction, wearproof, not easy to deform. 4、Long Service Life: Exquisite workmanship, microscope camera lens lift bracket performance is stable and reliable, has long service life. 5、Optimum Performance:: This focus arm bracket has been extensively tested, high performance, strong reliability, allowing you to operate the camera steadily. <p class="wang-edit-text"><p class="wang-edit-text"> Item Type:&nbsp;Adjustable&nbsp;Focus&nbsp;Holder Material: Alloy Applicable Objective Lens Diameter: Approx. 42mm/1.65in Applicable Connecting Pillar DIA: Approx. 22mm/0.87in Center Distance: Approx. 135mm/5.31in <style> .wang-edit-text{ font-family:'Arial' !important; } .wang-edit-text table { border-top: 1px solid #000; border-left: 1px solid #000; } .wang-edit-text table td, .wang-edit-text table th { border-bottom: 1px solid #000; border-right: 1px solid #000; padding: 3px 5px; } .wang-edit-text table th { text-align: center; }</style> 1 x Adjustable&nbsp;Focus&nbsp;Holder Satisfaction - Our customers are our top priority. If you find any product problems after receiving the goods, such as damage and incorrect quantity of goods, please contact the seller immediately. We try our best to provide you with satisfactoryaftersalesservice</br>