This LEGO Gabby's Dollhouse playset, Mermaid Gabby's Aquarium Adventure (11204), is designed for children aged 4 and up who enjoy sea creatures, aquariums, and DreamWorks Animation's Gabby's Dollhouse. The set includes a Gabby minidoll in a mermaid outfit, MerCat, and Jellyfish figures. Children can immerse themselves in an underwater world filled with shells, plants, and marine life, along with features like a slide, a bubble for MerCat to float in, and moving coral that reveals a treasure chest. The set includes visual instructions, a Starter Brick, and individually bagged buildable models for easy and enjoyable construction for young builders. It's a great way for adults to bond with children over building. The set contains 103 pieces.