Abstract: Provided is a pair of eyeglass comprising a frame comprising a recess at its either end-piece; a pair of temples each comprising an elongate slot at a front end, an opening on an inner surface in communication with the slot, and a plurality of parallel fins on a blind end of the slot; and a pair of flexible angle adjustment assemblies each comprising a forward projection fitted in the recess and releasably secured thereto, a rear extension having a tab at its end, and an intermediate protrusion at an inner side of the extension. The extension is inserted into the slot with the tab slidably secured to a gap between two adjacent fins and the protrusion firmly projected from the opening. Pivoting the temple about the end-piece will interfit the tab and a gap between a pair of adjacent fins.