Building set includes 1 Barbie Astronomer micro-doll, 23 building bricks with special pieces and accessories, and 1 heart-shaped baseplate to build on​ 2 fashion accessories for customization Play as you build roleplay accessories like a telescope, globe and star map Bricks combine with all Barbie and Mega Construx building sets, and are compatible with other name brands ​Ideal for ages 4 and up, this building toy provides build-and-play and storytelling experiences to develop creativity and problem-solving skills​ You can be anything when you explore the universe with Barbie Astronomer micro-doll. Play as you build and make new discoveries with roleplay accessories like a telescope, globe and star map. You can even customize your Barbie micro-doll with 2 fashion accessories. Designed for beginners, this building set is easy to build and offers storytelling play with every step of building. Ideal for Wonder Builders, ages 4 and up