Nova is clean and contemporary handcrafted glass. Besa’s easy-to-use bayonet mount secures the glass diffuser to the aluminum fitter with a “twist & lock” action. Besa Lighting Marble glass is a pressed glass that features swirls of white throughout semi-translucent frost, to create a faux alabaster appearance. When lit this gives off a light that is functional and soothing. The smooth satin finish on the clear outer layer is a result of an extensive etching process. This handcrafted glass uses a process where every glass is consistently produced using a press mold, keeping variations to a minimum.