Lego Mindstorms Robotic Invention System 1.5 - Full set, all parts, excellent condition!
This is the original Mindstorms Robotic System from Lego.
Light and touch sensors, motors.
Programming is possible through a number of computer languages - still supported online by enthusiasts.
I can provide further information regarding RCX programming.
It is especially easy with LINUX (eg. on a Raspberry Pi)
An excellent kit to teach, or just to build and play!
Over 700 Lego parts!