Lego 9719 Mindstorms Axel Flex Tube Yellow Sticks Only Robotics Invention System

LEGO Mindstorms - Robotics Invention System 9719 - PC CD-ROM - Disc Only

Lego 9719 MindStorms Robotics Constructopedia and Userguide - Books ONLY

Serial Cable #71793 for LEGO Mindstorms Infrared Tower X87

Lego 9719 Mindstorms Robotics Invention System Constructopedia Book Only

LEGO Mind Storms Robotics Invention System Original Instructions (9719)

LEGO Mindstorms Robotics 1.0 RCX Programmable Brick

LEGO Mindstorms Infrared Tower X87 IR #71793