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Robotix parts, despite their route creation being centered in the United States, use the metric system of measurement for their pieces. For example, they sell three arm pieces: Arm (50mm), Arm (75mm), and Arm (100mm). These parts connect using a Male/Female attachment system, where each connection is in the shape of an octagon. The toy was high quality for the time, featuring a good figure, heavy plastics and rounded corners.
Learning Curve Brands began offering Robotix sets in 1994, and continued offering them until 2001. The packaging at this time changed to reflect the Learning Curve name, and many new parts were added. Since 2001, Robotics and Things has continued to sell Robotix toys through the internet. Despite the changes in distribution, products currently available are fully backward compatible with all toys from 1984 onward. Information provided by Neil L. Friedman, Director of "Robotics And Things" in an email dated 11/5/2007.[unreliable source?]