Periodic Table Pen

The pen appears to be an ordinary ball point pen, but mounted in the barrel of the pen is a copy of the periodic table. The Periodic Table is printed on a plastic sheet called the "flag" (3" x 7") and is spring loaded inside the barrel of the pen. The Periodic Table is printed in full colour on one side of the flag, and the atomic masses of the elements are printed on the reverse side of the flag. A perfect reference for any chemist while he or she is working on a calculation or any chemical problem. The Periodic Table Pen is an ideal and inexpensive gift for all your science friends or an ideal and inexpensive prize for a deserving science student.