Amazon.com: Active Stylus Pen for Lenovo ThinkPad X1 Tablet Gen 2, Touch-Control and Type-C Rechargeable Digital Pen for Lenovo ThinkPad X1 Tablet Gen 2,Good at Sketching and Note-Taking White Drawing Stylus :
4X80U90632 original Lenovo (ThinkPad Pen Pro) - sparepartworld.com