The LEGO Ideas Tree House set (21318) is a complete set with 3036 pieces, designed for ages 16 and up. This authentic original LEGO set from 2019 features a tree house theme, perfect for builders looking to create a unique and intricate structure. Packaged in a box, this set includes all the pieces needed to build a detailed tree house, making it a great addition to any LEGO enthusiast's collection.