    81-Piece set has everything to build animals, vehicles, towers and more. Build on top of the lid and store everything inside when you’re done     Combine with sets (sold separately) that include an electronic Smart Star cube for music and phrases that enhance building play with learning content     Insert the 13 double-sided learning blocks into an interactive Smart Star to hear learning phrases about letters and objects     Electronic Smart Star cube not included     Intended for ages 2+     