LEGO DUPLO Princess Ariel Undersea Castle 10515 Includes Ariel figure and Flounder. Features slide, swing, seaweed, chest and a Sebastian-decorated brick. Swing measures over 6" (17cm) high, 5" (14cm) wide and 2" (7cm) deep. Ariel figure features mermaid tail. Accessories include transparent, rounded, and decorated seashell.