Around the world...a good movement, meant for warm-ups mostly, usually before heavy benching. Slightly different versions of it, also.. Can be a stand alone exercise by it's self. Might get some limited growth with it, because different methods of stretching can give some gains.
It's one of the first exercise my uncles showed me, when I first started working out. Said a lot of the old timers swore by it. Told that Bill Pearl and his brother (when in San Quentin) included it in workouts, back in the day. Have not seem that exercise in many a years, another forgotten good movement.
Good Luck.