It's a fully assembled, ready to run, RC hamster ball, complete with chargeable batteries. Ball is a standard 7" hamster ball modified to accept ball driving mechanics and will be customized in the color of your choosing. Also includes nifty display stand so you can proudly show it off when you're not driving it around.

Find a full BOM and build instructions here:
http://www.built-to-spec.com/blog/?p=668

And get all the design files here:
http://www.thingiverse.com/thing:13679

Videos here:
http://youtu.be/6X15eBpUSGU
http://youtu.be/nPqL2h55Tgc
http://youtu.be/-h-q-IdnQ3M

Shipping is included in the price of this item.