How do i get the LocalSize of an object?

How do i get the Local Size of an object?

public Vector3 mysize;
void Start () {
mysize=transform.localScale;
mysize.y = mysize.y * 2;
mysize.x = mysize.x * 2;

		transform.localScale=mysize;


		print ("I am taller now and my hight is" + transform.localScale.y);

		print ("I am taller now and my width is" + transform.localScale.x);
		
}