Lenovo Precision Pen 2 (Laptop)
Lenovo Part# GX81J19854
Stylus – Stylus - Black - Black - Notebook - 246 Hour Maximum Battery Run Time - 0.4" Diameter - Lenovo LAPTOPS Only - Retail - Precision Pen 2 - AES 2.0 - 1 Packaged Quantity - 4096 Pressure Levels - Lithium ...
Pen PRO2 for ThinkPad
Lenovo Part# 4X80K32538
Stylus – Stylus - Tablet PC - 0.3" Diameter - China - 1.7" Height - 2.9" Width - 8.6" Depth - Lenovo ThinkPad Pro-2 - 1 Year Limited Warranty