Parker 4702 Vector 3-in-1 Multifunction Pen w/ Stylus, Smoke Brl, Blue Ink, Med Pt, 1 Unit Parker Vector 3-in-1 Multifunction Pen w/Stylus. Multifunction writing instrument combines a ballpoint pen with a 0.7mm mechanical pencil and PDA stylus. A great choice for those who value performance and function. Multifunction instrument combines ballpoint pen with a 0.7mm mechanical pencil and PDA stylus. High performance and function. Well-balanced barrel. A great choice for those who value performance and function. Multifunction instrument combines ballpoint pen with a 0.7mm mechanical pencil and PDA stylus. High performance and function. Parker Vector 3-in-1 Multifunction Pen w/Stylus. Well-balanced barrel.