Insulators and Conductors

Today I got shocked a bit when I touched a doorknob. The reason I got shocked was because that doorknob was a conductor. That means that the doorknob took the electricity from my body and brought it to itself. An insulator that I touched earlier was my eraser. It felt very different from the doorknob. The doorknob was cold and smooth while the eraser just felt normal and a bit strange. You could tell that they were both different with electricity.