hand2mind Wooden Rekenrek Abacus for Kids, Math Manipulative, 10"x2.75"x2", Original Version, Model 79504The Rekenrek by hand2mind is a high quality math manipulative designed to enhance early math learning for children. This essential educational tool allows kids to grasp fundamental concepts of counting, addition, and subtraction through hands on exploration. Constructed from durable wood, the Rekenrek features two color beads that facilitate a deeper understanding of number values and representation. Measuring 10"x 2. 75"x 2", it is perfectly sized