How to adjust курсор size in Ubuntu/Chromium?

How to adjust курсор size in the Ubuntu/Chromium? I have installed this on an aging Acer One netbook. I had повторно нравьтесь the первоначальный Windows XP with Ubuntu 14 but due to the size of this little netbook. it was sluggish and overkill for the limited несклоняйтесь usage requirements. Thus, Chromium was installed which is just about perfect for в netbook. I am disabled and the present курсор is really small and hard to нравится.