PicassoTiles 108 piece Interlocking Building Chips (SKU: PTF108-BLK) all black offers a fun alternative to building blocks, the interconnecting chips click together simply and easily for children as young as 3, while still being an entertaining toy puzzle, and even a fun brain activity for adults nurture problem-solving, hand-eye coordination, and fine motor skills. This toy set creates an environment for STEM learning, tailored for school-aged children, this structural chip set seamlessly integrates imaginative play with academic enrichment. This set contains only black interconnecting chips.