A row of 5 vertical rods and 75 colorful cubes that stack on the rods. Used to develop skills in counting, sorting, digits, addition, subtraction, and comparing. Visual and hands-on math learning. Durable plastic for long-term use and easy cleaning. Includes 5 bases, 5 rods, 75 cubes, 49 number cards, 5 activity cards, plastic storage bin.