Enter for a chance to win 1 SumoGrip Eraser, 1 pack of Micron Pens and 1 SumoGrip Pencil. The SumoGrip Eraser has a series of erasers that feature micro porous foam technology that moves graphite marks from surfaces. These erasers are made of cells that are constructed like a net that picks up those graphite marks and erases really well.