... touch pen stylus for ipad2for mobile phone, PDA, iPod Touch 3g, iPhone 3Gs, Blackberry, Plam Pre, Nokia, Samsung, HTC, Apple iPad ,et.capacitive touch screen ... and dual-use function .2.prevent scratching the screen .3.high sensitivity on touch screen .4.easily clip on your pocket,book,backpact ... you don't want to remove your gloves. retractable capacitive touch pen stylus for iphone