1) capacitive pen for ipad 2) Work with most capacitive screen like iPad, iPhone, 3) Multi-purpose pens 2012 multifunction Capacitive pen for iPad/iPhone touch ... pen for iPhone+roller pen1)This product suit for iPhone 3G,iPhone 3GS,iPhone4,iPad,HTC,HD2 this ... ,will not feel tired when use long time.4)Some pens has the two functions,1 side is touch ...