Troika Construction Multitasking Mechanical Pencil (Black and Gold)
The Troika Construction mechanical pencil is great for architects and designers. It has 4 different rulers, in inches and centimeters, and has a stylus at one end. The graphite is advanced by twisting the point of the pencil, rather than clicking or pressing a button. The stylus cap can be removed to reveal the eraser.
This pencil weighs in at one ounce and feels noticeably heavy and balanced in your hand.