GEND YB400: A rare grey version of the yacht boy GEND YB400: A rare grey version of the yacht boy GEND YB400: A rare grey version of the yacht boy GEND YB400: A rare grey version of the yacht boy GEND YB400: A rare grey version of the yacht boy GEND YB400: A rare grey version of the yacht boy GEND YB400: A rare grey version of the yacht boy GEND YB400: A rare grey version of the yacht boy GEND YB400: A rare grey version of the yacht boy GEND YB400: A rare grey version of the yacht boy