For sale is a pair of 100mm cast aluminum tube rings. They will fit Orion and Vixen ED80, ED100, and similar Synta refractors. These came with my Vixen ED80 refractor, and I no longer need them as I have replaced the rings. They are threaded for 7mm bolts on the square side, and 1/4"x20 standard camera tripod threads on the round side for accessories. Condition is excellent with no scratches, paint chips or other damage. Color is white. Included are the original 7mm bolts that came with the rings. I added a bit of green felt beneath the 1/4"x20 screw holes.
