a cube corner type retroreflector comprised of transparent solid material or the like wherein retroreflective units of preferably different types are distributable over the entire surface of a product reflector . individual retroreflective units are arranged in row in such retroreflector and all of the cube corner retroreflective units in each row have substantially identical characteristics . in such a reflector , two different types of cube corner retroreflective units are distributable over the entire face of a product reflector unit instead of being grouped together into specific regions of retroreflective properties .