Its made of ribbon epoxy (yellow and blue make green).
The metal bits are bike spokes, or the the connector rods on those car racetrack sets.
There is some string wound around the cross bar.
The length of the main body is 2.3 inches.
There is a black elastic band that you twist with those round bits.
There is that arc with holes in it so you can fire stuff at different ranges by moving the rod to new holes.





