Lenovo ThinkPad Pen Pro-10 - Active stylus - for ThinkCentre M75t Gen 2; ThinkPad X1 Carbon Gen 8; X1 Yoga Gen 6; X1 Yoga Gen 8 - Walmart.com
Amazon.com: Lenovo ThinkPad Pen Pro-8 - Black - Notebook, Tablet PC Device Supported : Electronics
ThinkPad Tablet - Wikipedia
Amazon.com: BoxWave Stylus Pen Compatible with Lenovo ThinkPad T470p (Stylus Pen by BoxWave) - AccuPoint Active Stylus, Electronic Stylus with Ultra Fine Tip for Lenovo ThinkPad T470p - Metallic Silver : Cell
Amazon.com: Lenovo 4X80H34887 ThinkPad Active Capacitive Pen, Stylus, Black : Cell Phones & Accessories