magnet and magnetic material set (big) consists of a 8 cm long bar magnet and a magnetic material which is of the same dimensions. Both are each covered with a white box. This set can show that magnet will always induce an opposite pole on a magnetic material. Which ever poles facing each other will have a magnetic attraction. By enclosing them in a box, students will have fun identifying the materials. This video uses two sets to show the interaction between two magnetic materials, two magnets and one magnetic material and one magnet.