Welcome to the store! 1. Performance: The inner diameter is 25mm/0.98in, preventing the microscope objective lens from falling off and causing damage. 2. Excellent Features: Professional and practical design with an exquisite appearance, compact structure, easy to carry and use. 3. Wide Application: Commonly used in laboratories, schools, by teachers, for specimen observation, eyepiece protection, etc. 4. Essential Parts: The microscope pillar bar adapter is a crucial microscope accessory, reliable and dependable, easy to install. 5. Reliable Material: This ring is made of durable ABS and metal materials, sturdy and stable, and can be used for a long time. Item Type: Microscope Pillar Bar Adapter Material: ABS and Metal Inner Diameter: Approx. 25mm/0.98in 1 x Microscope Pillar Bar Adapter Your 100% satisfaction is our top priority. We will provide you with the best service. If you find any problems after receiving the product, such as damage, incorrect quantity, etc., please contact us immediately and we will provide you with the best solution!