BoxWave Kindle Fire HDX 7 Stylus Pen, [TwistGrip Pen Capacitive Stylus] Capacitive Stylus Pen with Twist Action Ballpoint for Amazon Kindle Fire HDX 7 - Poetic Purple Works on all capacitive touch screens Integrated ballpoint pen, perfect for taking paper notes Functional pen clip and twist grip Durable aluminum and rubber construction with replaceable ink Available in Crimson Red and Poetic Purple colors