A set of 100 colorful plastic cubes that connect together. Used to develop skills in counting, sorting, sequencing, graphing, pattern recognition, measuring, and basic mathematical operations. Also develops skills in spatial intelligence, creativity, problem solving, and fine motor skills. Cubes can connect on all six sides and rotate at each connection point. Endless possibilities for open-ended creative play and building. Durable plastic for long-term use and easy cleaning. Includes 100 plastic connecting 2-cm cubes in 10 colors, 5 activity cards, and plastic storage box.