BoxWave Stylus Pen for Lenovo Yoga 510 (14 in) (Stylus Pen by BoxWave) - AccuPoint Active Stylus, Electronic Stylus with Ultra Fine Tip for Lenovo Yoga 510 (14 in) - Metallic Silver:
New Lenovo Yoga 510-14AST 510-14IKB 510-14ISK Laptop Keyboard US No Backlit | eBay