Building sets are toys that allow children and adults to create structures, vehicles, and other designs using various interlocking pieces. These sets often include blocks, bricks, or panels made from plastic, wood, or other materials. Popular examples include LEGO, Mega Bloks, and K'NEX, which come in different themes and complexity levels to suit various age groups. Using building sets encourages creativity, problem-solving, and fine motor skills. As users assemble their creations, they learn about balance, symmetry, and engineering principles. Many building sets also promote collaborative play, allowing friends and family to work together on projects, enhancing social skills and teamwork.