Kids can build and explore spatial relationships with these linking cubesnBuilds counting, sorting, and measuring skillsnAlso good for graphingnCubes link together on all sides and are compatible with other linking cubesnPerfect for Grades K and upnBuild knowledge of spatial relationships with this set of 1000 Plastic 3/4" cubes in 10 colors. Cubes feature geometric shape cut-outs for more complex patterning activities.