Are you tired of pressing the pen when you have to erase, risking scratching the screen?
Put a piece of scotch on the button of the eraser in order to keep it always pressed: you just got it contacless eraser 
Are you tired of pressing the pen when you have to erase, risking scratching the screen?
Put a piece of scotch on the button of the eraser in order to keep it always pressed: you just got it contacless eraser