These are some lens cap rings designed to fit Bushnell binoculars. The size of these may need to be adjusted to fit your equipment.
You will need to purchase some adequately rated solar filter film to cut to fit inside the outer rings. The film can be sandwiched between the two rings. Do not buy knock-off film.
Use at your own risk.
BinocularFilterRings1.stl | 222.0KB |