This 1986 Robotix Modular Construction System Expansion X-1 comes with extra parts to expand your building possibilities. The set includes pieces from the Robotix Series R-310 and is compatible with other Robotix sets. With a multicolor theme and plastic material, this building toy is perfect for construction enthusiasts and fans of the Robotix character family. Create your own unique robot designs and let your imagination run wild with this versatile set. Sets are not complete but come with lots of extras.