Fits microscope heads with a 50 mm annular mounting ring for secure, stable support. Accommodates standard stand posts with a 25 mm opening (arbor diameter), enabling easy integration with common stands. Professional and practical design with a clean, attractive appearance; lightweight and easy to carry and use in various settings. Key benefits and features - Secure mounting: the 50 mm annular ring provides a stable fit for the microscope head, helping minimize movement during adjustment and observation. - Easy compatibility: the 25 mm post opening is sized for standard stand posts, simplifying setup on compatible equipment. - User friendly design: professional and practical in appearance, designed for straightforward handling, transport, and operation. Use scenarios - Teaching and demonstrations: quickly mount and swap microscope heads during classroom presentations to display different samples. - Research and benchtop work: set up multiple heads on a single stand for comparative observations, with reliable stability. - Field service and maintenance: transport and attach to standard stands on-site for inspections or measurements in the field.