This Solar System ruler features the sun eight planets and the asteroid belt. The planets are pictured in order in realistic colors along with brief information about the size and temperature range of each planet. Sorry Pluto dwarf planets not allowed. Characteristics: The solar system ruler includes both metric and standard scales allowing easy conversion. Educational facts about the sun planets and asteroids are included below engaging pictures. Size and Color: The metric edge of this ruler includes centimeters and millimeters while the standard edge allows measurement to the sixteenth of an inch. True-color pictures of the sun and planets add to the realism and educational value. The Solar System is part of the Safariology® collection All of our products are Non-toxic and BPA free.