Zolix is manufacturer of mirror holder/mirror mount. The diameter is from 12.7mm to 50.8mm in order to hold many different mirrors, lens, filters !
It can connect with Zolix other products, for example: post, holder, base, optical breadboard,etc.
*Prices are pre-tax. They exclude delivery charges and customs duties and do not include additional charges for installation or activation options. Prices are indicative only and may vary by country, with changes to the cost of raw materials and exchange rates.