"SYMBOLS OF MATHEMATICS" ENGRAVED GIFT PEN w/ LED LIGHT & STYLUS

"Symbols of Mathematics" engraved gift pen with LED light and stylus tip Engraved with Pi, geometry, Function, & integration symbols Comes in a keepsake presentation case for easy gifting; A suitable gift for any math nerd, mathematician, math major, or math teacher. Handy 3-in-1 multifunction pen features a ballpoint writing tip, an LED light, and a stylus for operating touch screen devices such as tablets, laptops, and phones. Rubber stylus tip imitates the touch of a human finger, without leaving dirt & fingerprints on your touch screen device. Compatible with mini-D1 size ink refills; Uses replaceable L736 or LR41 batteries