The Seiranger's combined mecha composed of their respective ShinmaShinjuu: Type Dragon, Type Turtle, and Type Bird.
More info here
note: The shinjuu names will change on ff. episodes
The uniform Akagi, Mitsui, and Hikari wear when going to school. The boys have black shirt and pants, while the girls have white blouse, with yellow ribbon, black vest, and a black skirt.
Potions Kota-chan created from his lab (he has a lab). Using his super-nerdy genius, he created these potions, enabling him to transform into different kinds.