Original Bluetooth Stylus Pen For Lenovo Thinkpad X1 Yoga, L380 Yoga, L390 Yoga , Ideapad C340 Flxe 5i X390 Yoga Tablet Laptop - Tablet Pen - AliExpress
Amazon.com: BoxWave Stylus Pen Compatible with Lenovo ThinkPad Yoga 11e (5th Gen) (11.6 in) (Stylus Pen by BoxWave) - AccuPoint Active Stylus, Electronic Stylus with Ultra Fine Tip - Metallic Silver :
Amazon.com: Active Touch Pen for Lenovo Yoga 520-14IKB New Without Battery : Cell Phones & Accessories