The photo above shows an unpainted first shot head for the Boy Wonder. You may notice the excess plastic attached to the head. This is referred to as a sprue. The sprue is excess plastic attached to whatever part has come from the steel mold. The liquid injection molded plastic travels through channels in the steel mold and fills up the sprue area as well as the cavity for the actual toy parts. In this instance, we can see that four heads were once attached to the sprue, however only one is present now. The presence of the sprue is the nicest aspect of this piece as it offers a glimpse into the injection molding process used to create our favorite toys.