This kit comes with the following:
1x Linkbot-I
3x Snap Connector
2x 3.5" Wheel
1x Ball Caster
1x USB Cable
1x 8"x10" Resealable Bag
1 Year Extended Warranty 
 
This kit allows you to quickly get started with learning robotics, coding, science, technology, engineering, and math (STEM) with a Linkbot.
 
Getting started programming Linkbot with RoboBlocky.
 
The recommended add-ons for this kit are
Linkbot Dongle
Ch Professional Edition
Arduino-Compatible Starter Kit
Linkbot Sensor Connection Pack
Robot Sensor Pack
Pan-Tilt Pack