Learn about the distances of planets to scale or the size of the planets to scale, & astronomical units with this helpful measuring tape for any Astronomy or solar system unit. Hang it on the wall or pull it down & place manipulatives on it as you walk out the distance with your fingers. It takes a hard to conceptualize the idea & makes it more concrete. This is a beautiful thick buttery-soft ribbon-like measuring tape that measures 2"x 96". Solar System To Scale Measuring Tape