Product Description Designed in a square size 5 x 5 x 2 cm (1.97 x 1.9 x 0.79 inch), the eraser features small, lightweight, suitable for children and adults. A good assistant with strong absorb-ability, they are not just erasers, but also can be used as magnets on whiteboard or any other magnetic surface, a handy necessary for classroom, school, home, office meeting.