It is not only for adults, teenagers and even children can do it, depending on how much they have been involved in puzzle creation. However, very young children will struggle because it requires skill to secure the pieces in the air, my 4-year-old daughter had a hard time and couldn't secure them in some places. But we loved it! It was the first 3D puzzle we made and we couldn't stop playing with it! Fortunately, the right and left side of the shoe are in separate bags, it also has numbers behind each piece, so someone can assemble it even if they have no experience with puzzles. I highly recommend it, to the point that we ordered it several times as a gift.