The Magnext Dynamix Advanced Gears was an absolute bargain-buy for the grandson's recent birthday. I knew as soon as I spotted this on ebay that he would love this. I was actually looking up the price of another Magnext toy that he had actually asked for (the Icoaster) when I stumbled across this being sold for a bargain 99p plus £3 postage - brand new in box. I felt a bit bad when it arrived with £6.50 postage stamped on it actually!
If you want to buy a set yourself, for some reason this only costs around £5 - £10 wherever you get it from, with Amazon having it available from several different Marketplace sellers. For a set of this size, including this kind of electronic function, I'm really quite surprised. I can only summise that this is a niche product which only appeals to certain kinds of children. It definitely appeals to the grandson.
You put a series of cogs onto the bumpy base board included in the set, then you just add batteries into the giant circle and stick that on, and stick the lever on too. Then just flip the lever to get all the cogs on the board turning around - simple stuff. Of course this in itself is a bit limited, but the idea is that you use your existing Magnext (and the few additional pieces included in the box) to build up your own ideas, inventions and systems. Then get them spinning around.
I can see now I write this that it's a basic idea with very little variation. However, it's an idea that has really appealed to my grandson and provided him with a good half an hour's play each time he's got this out. It works very easily too, and we've not had any difficulty getting the power to work. It's as easy as slapping the bits down and flicking the switch on.
Definitely recommended for budding engineers in the 5-8yrs age group. Any older and they'll find this a bit boring I think. Any younger and they won't be able to work out how to get the cogs to work with one another very easily. The price is nice and low, but do be aware that you'll need some other Magnext pieces to use with this set to get real play value out of it. If your child doesn't already have any, you're looking at buying something like one of the little starter kits to go with it.