My 5 year old son is one of those very mechanically minded kids. He loves to see how things work, take them apart and then build his own. From the time he was very small he was always making tools. He would usually attach a shoe string to one end which he would then stick into a drawer or something. That was his power cable of course! Well, for those of you how are getting really tired of your kitchen implements (you know egg beaters, whisks and such) being employed for these purposes, let me give you some advice. Buy Gears, Gears, Gears! for your child. I came across them on the Amazon website and thought they would be just the thing for him. I was really worried about buying them because all too often I have given my kids something that seems really great and then two weeks later they could care less. This toy is not like that because it is endlessly creative. My son has built robots, towers that move, tools that turn and all manner of things with this toy. According to Amazon's website this toy encourages independent play, mathematical and motor skills and I couldn't agree more. What's more, after a year and a half he is still playing with it on a weekly if not daily basis. If you've got a builder on your hands, I think you'll be quite pleased with this.