The LEGO set "Year of the Rat (40355)" is a limited edition Seasonal set released in 2020 as part of the Chinese Traditional Festivals subtheme. It features 162 plastic pieces and is designed for ages 7 and up. The set includes a total of 5.4 inches in length, 1.7 inches in height, and 4.9 inches in width, packaged in a box. This retired set celebrates the Year of the Rat in the Chinese zodiac, making it a unique and collectible addition to any LEGO enthusiast's collection.