Wacom Bamboo Duo&nbsp; 2-In-1 Stylus with Pen for Kindle, Apple iPad, iPhone, iPod touch, Android and other Capacitive Touch Surfaces (CS150W) Excellence performance both on screen and on paper - thanks to a very slim and responsive rubber nib and a ball point with a high-quality ink refill Stylus is made of durable quality materials and crafted with care Polished anodized aluminum combined with soft-touch finish body The rubber nib can be easily exchanged with affordable replacement nibs (ACK20609)