Antares Telescope Tube Mounting Rings - 3.5" (90mm) (Set of 2) for many 80mm Refractors

3.5" (90mm) tube ring set (2) with (6) M6 mounting holes; (3) top and (3)bottom.

Tube ring set for 90mm (3.5") tubes. Aluminum with felt liner, these mount with included 6mm hardware and can be used with most bars.