The LEGO Set 31220 Confidential is a challenging building project specifically designed for adults aged 18 and over. With a total of 3,179 individual pieces, this set offers a demanding and creative experience that requires both skill and patience. The construction is designed to be not only enjoyable but also to deliver an impressive final result that can serve as a decorative element in any room. The set operates without an external power source, providing a sustainable building experience. It is important to note that the product is not suitable for children under 3 years old due to small parts, to avoid choking hazards. Weighing 3,700 grams, the set is sturdy and offers a variety of options for customization. The LEGO 31220 Confidential is ideal for anyone seeking a challenging endeavor and looking to further develop their creative skills.