: Includes various sizes (like 2x4 and 2x8) that feature metal contacts on the studs and underside to pass electricity through a build.
This set was a specialized "Service Pack" designed to extend the 9V electric system used in LEGO Trains and Space themes from the late 80s. Set 5037zip
: Unlike standard plastic bricks, these contain metal and should never be washed in water, as this will cause corrosion. 4. Digital Resources : Includes various sizes (like 2x4 and 2x8)