2. Pen
"Little thing that change everything"
Pen is a common thing in our life, its small but without it we can't write anything,
so the main function of pen is to help us to write something in some of paper.
For example we want to write a love letter so we write it with pen.
Pen also have some of componen or parts such as the body, ink nozzle, the ballpoint,
And a spring (the type that the ballpoint can be pull up).
The characteristics of pen. Materials that used to make pen are dominant with polymer
But there is some of pen that build with alloy steel or other metal, this kind of pen
are more expensive than the polymer (plastics), the shape of pen is just
straight and the colour of pen there is many of colour variant but usually black
is more common use for pen colour cause it look more elegant.
So the parts of a pen it is pretty simple there is a body that can be build from
Polymer, alloy and other metal stuff, there is a ink nozzle made from polymer its
function is for put the ink, there is spring made from metal and last is the ballpoint
usually made from steel.
