The Lego Harry Potter Advent Calendar 75981 is a 305-piece building set featuring characters from the Harry Potter theme. This set, part of the Lego product line, is designed for ages 7 and up and has a holiday-themed interest. With the iconic Harry Potter characters and a brick separator feature, this set is sure to provide hours of fun for fans of the franchise. Packaged in a box, this set from 2020 is a perfect addition to any Harry Potter enthusiast's collection.