Pirelli brings hard and medium (of the softs)
So do you mean Hard and Softs?
http://www.pirelli.com/corporate/en/press/2013/04/15/bahrain-grand-prix-preview-sakhir-19-21-april-2013/?utm_source=feedburner&utm_medium=feed&utm_campaign=Feed%3A+PirelliPress+%28Pirelli%3A+Press+Release%29 This says they're going to use the hards and mediums. Pretty sure it has been changed