Review on 🎁 Discover the Perfect ROBOTIME Treasure: Mechanical Engineering Birthday Delight! by Aaron Guy

the quality is not quite perfect but my son liked it despite the difficulty in understanding the instructions. Once together, it didn't work quite right; The key gear was deformed so we stuck it between two blocks of wood for 2 days and it helped. Although I would have preferred to work without this step, it was a good exercise in critical thinking and problem solving for my 14 year old. Not to mention he's collected about 6 of these things from different manufacturers and they always need some fine tuning.