Experiment with magnetism, create fun games, and amaze your friends. Magically dangle a chain of marbles from the wand, make the marbles dance without touching them, and more. Includes 1 magnet wand (7.63 inches long) in assorted solid colors and 5 bicolor magnet marbles (.63 inches in diameter). Ceramic magnets are completely encased in plastic. Ceramic magnets are the most lightweight and economical magnets. Children safety tested for ages 4+.