Everyone gets hands-on exploration with this complete 224-piece classroom set for 25 students. Includes 100 Magnetic chips, 100 Magnetic paper clips, 10 Marbles, 7 Magnetic wands, 2 Metal ring magnets, 2 Mini metal horseshoe magnets, 1-5" Plastic horseshoe magnet, 2 Metal bar magnets Teacher's guide and durable storage box.