Allowed our lad to buy this for himself, on the grounds that he could build it himself, and adapt it using other Meccano kits he has. Took about an hour to build (although he did need my help a couple of times when an extra pair of hands was required), and he loves it. The chassis is sturdy, and quite capable of racing around the house, and we're now confident that he'll be able to use some of his other Meccano kits to adapt this into other vehicle. All in all, a really good kit. It was on sale when we found it, and I know we wouldn't have been able to afford full list price, but the price we paid was a bargain. Recommended for young engineers, especially if you have, or intend to buy, other Meccano bits for them.