Edmund Optics Positioner Lens Holder
Description: Overstock from my lab. Seems "custom-made" for some weird application. Spring loaded clip with "lock in" mechanism. Base is special and measures 122x102mm. Main variable hole in the middle varies from 63mm to 77mm aprox. It has a kind of thin metal tweezers that can be unmounted and replaced via allen screws.
Issues: some usage marks here and there.