How big should a Big Mac really be? McDonald’s is testing various levels of bigness in its iconic Big Mac, and will offer a both a super-sized Grand Mac and a miniaturized Mac Jr. — to “provide customers with additional options to fit their lifestyles,” it said in a press release. The two new sandwiches are being offered in approximately 130 restaurants in the central Ohio area through June 6, as well as in restaurants in Dallas. McDonald’s has offered different variations of the Big Mac in Korea, Japan, Germany, Australia, and France. This year, it rolled out the Grand Big Mac and an even larger Giga Big Mac with four patties in Japan. Now, it is bringing its experiments in bigness to America.