50 coloured transparent chips ... with a metal border tempt kids to experiment with the magnetic pen. In doing so, they'll soon be able to answer questions like the following: What qualities has a magnet got? Which materials are attracted by a magnet, which aren't? How does the attractive force of a magnet work? Material: metal magnetic, plastic Measurements: bar 19.5 x 3 x 1 cm, chips O 2 cm 3 years and up