This universal adapter allows you to easily connect your smartphone to a wide range of optical instruments like telescopes, microscopes, monoculars, or binoculars, turning them into powerful tools for photo and video capture.

Its adjustable design fits eyepiece diameters from 21.65 to 33.5 mm. Made of durable ABS plastic, it offers stability and strength while remaining lightweight.

Ideal for field documentation, scientific outreach, astronomy, or specimen observation. Easy to mount and compatible with most smartphone models.