Make playtime extra thrilling with the LEGO® Friends Mermaid Roller Coaster Ride (42703) building set for kids ages 8 and up. This fun gift idea for girls and boys lets young builders create a working roller coaster and send it zooming around a rotating pool where beautiful mermaids swirl and perform. This exciting, functional playset comes with lots of accessories and 5 minidolls, including Autumn, whose face can be swapped to show relaxation or excitement, and 2 mermaids, Serina and Azuria, who both have opalescent hair. Amusement park lovers can find endless ways to enjoy this roller coaster building set with themed details at every turn, including a ticket entrance, park map, photos and lots more. Kids can enjoy intuitive building with the LEGO Builder app, zooming and rotating with 3D instructions, while saving and tracking progress – all from the app. Set contains 864 pieces.