Just like their real counterparts, Blub Company's solar powered Jellyfish bobble head toys, have no guts, no teeth and no gills and rely on the sun to make it through the day. Very low maintenance, they need no feeding, water changes, or messy disposal when expired. They are happy to wobble all day long using just on normal interior lighting and need no batteries either. 3 1/2" tall, 2 1/4" deep and 2" wide. Made by Blub Co, Japan.