Save space and encourage children to explore measurement and weight. Both balances feature an efficient, compact design with equivalency markings that allow children to assign less than, greater than, or equal to symbols to their balance setup and demonstrate mass equivalency. Assemble and disassemble quickly. Clear buckets and pans work well for both liquids and solids. This set is perfect for classroom use. Details: Nestable Pan Balance design 17'' x 9'' x 7'' Set of 4 Includes Activity Guide Assembles and disassembles quickly For ages 3 and up