Yemenite-custom etrogs are very, very large – the larger the better. Non-hasidic haredi #2 Rabbi Chaim Kanievsky is apparently accustomed to using many different types of etrogim on Sukkot in order to cover all the different halakhic opinions and customs, similarly to way some people put on four pair of tefillin (or the way most hasidim put on two). Here's a picture that will surprise most of you:
Via Yeshiva World. And yes, those etrogs, including the one Rabbi Chaim Kanievsky is holding, are real:
