The LEGO Set 72151 Confidential offers a challenging and creative building experience for adults. With a total of 587 individual pieces, it allows builders to create a detailed model that is both aesthetically pleasing and functional. This set is specifically designed for individuals aged 18 and over, promoting concentration and fine motor skills. It is important to note that the set is not suitable for children under 3 years old due to small parts, to avoid choking hazards. The weight of the set is 787 grams, making it a manageable yet substantial building project. The construction does not require an external power source, which increases flexibility during the building process. The LEGO 72151 Confidential Set is ideal for anyone seeking a challenging and relaxing activity to unleash their creative abilities while creating an impressive model.