Safari school supplies Solar system ruler This Solar System Ruler is part of the Safariology collection. On this ruler are the sun, eight planets and the asteroid belt. With this ruler you can easily measure the size of other objects in centimeters or in inches, and at the same time you learn fun facts about our solar system The product is non-toxic and BPA-free Specifications: Collection: Safariology Colour: black, transparent Gender: junior Material: plastic Dimensions: 31.5 x 5 x 0.2 cm (L x W x H) Age: 4-12 years