Learning Resources 2-Color Desktop Abacus, Red Frame Abacus allows children to visually and tangibly move beads as they count, add, subtract, multiply, identify place value, and more Helps children learn and reinforce abstract math concepts in a hands-on way Features a frame that is thicker than the beads, allowing the abacus to lie flat on student desks Abacus includes 10 rows of 10 beads in 2 colors grouped in 5s for ease of use Ideal for ages 5+