The LEGO Harry Potter Hogwarts Room of Requirement set (75966) is a 193-piece building toy released in 2020. This set allows children aged 7 and above to construct the iconic Room of Requirement from Hogwarts School of Witchcraft and Wizardry, complete with details from the Harry Potter franchise. With a height of 11.02 inches, length of 11.77 inches, and width of 6.3 inches, this LEGO set offers a fun and engaging building experience for young fans of both LEGO and Harry Potter.