The tree has interchangeable sets of green summer leaf elements and yellow and brown fall leaf elements-these and various plant elements on the base are all made from sustainable-plant-based polyethylene plastic-and the treetop and cabin roofs are removable to allow easy access. The model is packed with play-inspiring features including a buildable picnic table and seats, swing, bonfire, treasure map and hidden gem element to play out a treasure hunt, and a wind-up crane on the balcony of the bedroom cabin. A great birthday gift, this unique creative toy comes with mom, dad and kids mini-figures, plus a bird figure, to role-play fun family scenes. It also includes a booklet with building instructions and information about this LEGO Ideas set's fan creator and LEGO designer. This challenging, 3,036-piece building toy features a landscape base, tree with interchangeable sets of green (summer) leaves and yellow and brown (fall) leaves, and a LEGO Tree House with 3 cabins-main bedroom, bathroom and kids' room Landscape base features a buildable picnic table with 4 mini-figure seats and assorted elements to create a picnic, plus a buildable stream, swing (hanging from the tree), bonfire, hidden gem element, plant and bush elements, and a ladder to the cabins. Tree foliage features over 180 botanical elements made from plant-based polyethylene plastic using sustainably sourced sugarcane. Assorted plant elements around the tree are also made from this plant-based plastic. This is the first milestone in LEGO Group's ambitious commitment to make products using sustainable materials by 2030. Main bedroom cabin features a buildable bed, and assorted elements including hidden scissors (as a reference to the fan creator's day job as a hairdresser), ship in a bottle, compass, clock plus a balcony with a hand-operated, wind-up crane to lift items up to the cabin. Bathroom features a buildable bathtub, toilet and sink. Kids' room features bunk beds and assorted elements such as a book and treasure map.