Z-Tap Mechanical PencilFeatures a side-click lead advance and popular smoked barrel design. The convenient side button allows the 0.7mm lead to advance effortlessly without changing hand position. The jumbo, extra-long twist-up eraser makes it easy to correct mistakes. Contemporary contoured shape for added comfort. Stylish metal pocket clip. Mechanism: Mechanical; Pencil Type: Mechanical; Lead Color(s): Black.