Stylus Pen for Lenovo Yoga Smart Tab Row (Stylus Pen by BoxWave) - AccuPoint Active Stylus, Electronic Stylus with Ultra Fine Tip for Lenovo Yoga Smart Tab Row - Metallic Silver - Newegg.com
Original Lenovo YOGA C940-15IHR Pen Stylus 01FR726 For C940 15" Laptop | eBay
Amazon.com: BoxWave Stylus Pen Compatible with Lenovo Yoga C940 (Stylus Pen by BoxWave) - AccuPoint Active Stylus, Electronic Stylus with Ultra Fine Tip for Lenovo Yoga C940 - Metallic Silver : Cell