LAMY st Twin Pen
2 in 1 / twist-action mechanism / matt stainless steel / with refill LAMY M 21 black / pencil lead LAMY M 41 (0.5) / eraser LAMY Z 15
Ballpoint pen and mechanical pencil in one writing instrument. Spring-action steel clip. Eraser under removable push-button (LAMY cp1 / st).