A pen or pencil is just a click away with this handy dandy Lamy multi-pen. Rotate the pen barrel one way to get a working, black pen refill. Twist it the other way for a .5mm lead mechanical pencil! When the pencil feature is engaged, click the tail to advance the lead. Pull off the tail button and reveal a half-used but fresh eraser. Such nifty writing instruments. The ballpoint takes those Lamy stick refills. 14.5cm.