Hands-on math!

Rectangular prism

A rectangular prism is a solid (3-dimensional) figure where all sides are rectangles and all sides meet perpendicular to each other.

A brick or a shoebox is a rectangular prism.
A rectangular prism is a special type of parallelepiped.
Now here is a problem for you:
Look around and find another example of a rectangular prism.
Hint: Maybe a game piece?