Buisringen 90mm

These felt-lined, 90mm mounting rings are made of solid aluminium, powder-coated and compatible with most OD tubes, as well as all William Optics 80mm telescopes (all Megrez 80 telescopes and Zenith Star 80).

A worthwhile investment if you want to use your mount as well as possible.

- comes with five threaded holes (Imperial 1/4x20 external thread; internal M6 metric thread), suitable for mounting on most dovetail plates and WO dovetail plates.

- user-friendly knurled knobs with Teflon paint protection on end.

- felt-lined to protect even the most sensitive telescope paint.