LEGO MINDSTORMS 9797 Various Parts, Accessories Spares & Instruction Manuals
9844 Light Sensor Only from Set 9797 2006. 9845 Sound Sensor Only from Set 9797 2006. Electronic Ultrasound Sensor Only from Sets 9797 & 8547 2007. 100% Genuine Lego ® MINDSTORMS Various Spa re Parts.