This is the same head mold as the standard release SD13 girl Nono and the standard release SD boy Ryo. The default eye size is 20mm. The standard model version of SD Ryo was discontinued by Volks in September, 2010, and SD13 Nono is no longer sold as a standard model, and was never released in pureskin. As such, this is now a FCS-only head mold.
Please click on the individual thumbnails to see the pictures full-sized.