160mm Pier Extension for AM5 Mount

This is a 160mm Pier Extension for the ZWO AM5 Mount.  A pier extension provides extra height for more comfortable observation by taller users, or to give longer refractor OTAs more clearance without sacrificing strength or stability. The added height provided by the extension is suitable for users of refractor and Cassegrain telescopes, since their focusers and eyepiece holders are positioned at the rear of the telescope tube.