This bundle comes with the following product parts:
16x Linkbot Super Kit
4x RoboPlay Accessory Pack
4x Activity Mat: MathGrid
4x Activity Mat: GeoGrid
2x Barobo 60W 8-Port USB Charger
2x Bundle Carry Case
1 Year Extended Warranty 
 
The recommended add-ons for this bundle are:
2x, 3x, or 4x Activity Mat: RoboTown (Grades 2-12) or Activity Mat: RoboVillage (Grades TK-1)
4x Linkbot-L
16x Arduino-Compatible Basic Kit