Amazon.com: Lenovo Active Pen 2, 4096 Levels of Pressure Sensitivity, Customized Shortcut Buttons, for ThinkPad X1 Tablet Gen 2, Miix 720, 510, 520, Yoga 720, 920, Replacement Tips Included, GX80N07825 : Electronics
Amazon.com: LAZARITE M Pen Grey, Active Stylus for Lenovo Yoga 7i/9i, Flex 5, Hp Envy x360/Pavilion x360/Spectre x360, Digital Pen with 4096 Pressure Sensitivity, Palm Rejection, Tilt Support : Electronics
Lenovo Active Pen - active stylus - GX80K32882 - Tablet Stylus - CDW.com
UPDATED: Lenovo's elusive Thinkpad Active Capacitive Pen is finally a reality — Surface Pro Artist