kid mountain bike - good for 6-10 year old

Hi all,

We're selling our son's mountain bike as we're moving back to Europe. It is a great bike for both off road trails and city.
The bike has 21 speeds and is ready to go any time.

For pictures see here:
https://plus.google.com/photos/112956330898765173168/albums/5869472833723413713

We bought it 2 and a half years ago and paid $350 at Mike's Bike on El Camino and are now asking $100.

Let me know if you're interested.

Dario