Of everything my 7-year-old daughter got for Christmas, this was probably her favorite gift. She is very into Legos, and likes toys that encourage her to build. We had already purchased a couple of Quercetti products in the past, and were always impressed by their quality, and this toy is no exception. I really like that it is made in Italy and free of all commercial tie-ins.
There are a good number of pieces to the set: a base, which forms the lid of the carrying case, along with several "tools" and a variety of nuts, bolts, and washers. A manual is included, which shows several different types of projects (a helicopter, a free-standing car, etc.). What I like best about Quercetti manuals is that they don't include instructions. The pictures are very clear and detailed, but in order to build what is shown, you have to use some powers of deduction. This can be a challenge, but it is also a great reward, as my daughter is very pleased when she completes one of her construction projects. I really like how this toy promotes spatial skills and deductive reasoning. It makes for a more engaging toy, and one that I actually feel is helping my daughter to acquire some real skills.
In other words, it's an educational toy that is also really, truly fun for her. What's more, it's also fun for adults. Her Quercetti toys are the most enjoyable for me to play with, which encourages a good deal of enjoyable time spent playing with my daughter.