Bring a vibrant underwater world to life with the LEGO Icons Tropical Aquarium (10366) building set for adults ages 18 years old and up. Teeming with brick-built aquatic life and striking colors, this fish tank model building kit provides builders with an immersive project that doubles as stunning room decor or office decor. Fun features and functions reveal themselves as you build: rotate the dials and cranks to animate a swimming fish, swaying coral, a crab emerging from an underwater cave and an opening treasure chest. Outfit your aquarium with 4 model fish, an oyster shell containing a pearl, a variety of plants and coral, plus sea worms, LEGO sea snails and air bubbles. Arrange each feature for the perfect look and display your creation as home office decor or a captivating centerpiece. This LEGO set for adults makes a wonderful gift for men and women. For a convenient building experience, check out the LEGO Builder app for a digital version of the building instructions included in this set. Contains 4,154 pieces.