Amazon.com : Astromania Adjustable Guiding Scope Ring Set with Plate - 80 mm Inside Diameter (Pair) - for Telescope Tube Diameter or Finders 53 to 79mm : Electronics
William Optics Mounting Rings for 80mm Telescope WE-MR-80 | 4 Star Rating Free Shipping over $49!
Agena Telescope Tube Rings (Set of 2) - 3.5"
William Optics Tube clamps 90mm
85mm PLUS support rings: Buy online | Primalucelab.com
80 mm Finder Rings
80mm Tube Rings(pair)/ 573852707392 | eBay
80mm Abs Astronomical Telescope Clamp High Quality - Instrument Parts & Accessories - AliExpress
Antares Telescope Tube Mounting Rings - 3.5" (90mm) (Set of 2) for many 80mm Refractors (Same as Orion) - Camera Concepts & Telescope Solutions
Inner Diameter 80mm 90mm 100mm 114mm Tube Ring Hoop Metal Clamp Ring For Fc60 Monocular Stronomical Telescope Accessories (pair) - Telescope - AliExpress
Stellarvue R80ET 80MM Finderscope Rings for Hinged Tube Rings *Dis...