Active Optical Pencil, Precision Writing High Accuracy Digital Stylus Optical Tracking for Designers Architects Illustrators Sketching Note-Taking Drawing 1.Compatible Model: PN350M Stylus Pen, Compatible with 5400 7300 5491 7390 2-in-1, for Latitude 3190 3390 2-in-1 and other portable tablets.Ideal replacement for old or damaged pencils. Battery not included New
