This pan balance encourages children to explore measurement and weight by placing math manipulatives, counting bears, or counters in the scale to compare their weight. They learn early math and science concepts such as inequalities, mass, volume, counting, subtraction, and addition. The durable, clear plastic design lets them compare solids and liquids, and the balance assembles and disassembles in three easy steps. Size: 35.6 x 20.3 x 10.2 cm. Ages 4 to 5.