How to Attach Telescope Dovetails, Tube Rings, & More
Sirius Vixen Dovetail Clamp (brass) 87mm - Tube Rings & Bars
Telescope Mounts: a beginner's guide - BBC Sky at Night Magazine
APM Telescopes. TS-Optics CNC Aluminium Tube Rings for telescopes
This Losmandy DVA adapter lets you mount a telescope tube ring or accessory on either a Losmandy D or V style dovetail plate or a Vixen-style
Losmandy Dovetail accessory adapter for Losmandy D-Plate and Vixen dovetails
This pair of two 115mm Vixen Tube Rings clamps onto your optical tube assembly (OTA) and provides a solid and secure mounting point for your dovetail
Vixen Optics Tube Rings with 115mm Inner Diameter (Pair)
ScopeStuff
Two tube rings made of metal;the guide scope rings are suitable for small and medium-sized guiding telescopes;70mm compact deluxe finder guidescope
SVBONY SV116 Guiding Scope Ring Kit for Telescope Tube Diameter or Finders 43mm to 70mm with Pair Ideal for Astrophotography
110mm 160mm 200mm Pvc Tube Ring Hoop For Diy Refraction Reflection
ADM - V Series Dovetail Ring Set - 90mm Adjustable Rings
Ring Telescope Scope, Telescope Holder Ring
Farpoint Collimating Rings 90mm & Vixen-style Dovetail
Vixen Optics Dovetail Tube Plate ES2661 B&H Photo Video