LEGO Dacta Baby BABY is the youngest member of the LEGO line. Designed for children aged 6-24 months, the chunky, easy-to-stack pieces and cute characters encourage all kinds of fun activities- build a tower, knock it down, tug a train or play hide and seek. Special pieces include rattles, cars that can be linked, train engines that toot, and caterpillars that jump. BABY pieces fit with DUPLO pieces, so the fun can last for years! For more LEGO building fun, browse our selection by category.