The LEGO Super Mario: Reznor Knockdown Expansion Set (71390) is a 2021 release from LEGO's Super Mario theme. This set includes a Reznor Knockdown Expansion Set with detailed instructions for building. With a height of 22.01 inches, length of 11.77 inches, and width of 9.92 inches, this set is designed for ages 8 and up. Perfect for fans of Super Mario and LEGO building toys, this set offers a fun and creative way to play and build with iconic characters from the Super Mario franchise.