Mitsubishi Pencil Shift Professional Drafting Mechanical Pencil 0.5mm, Set of 2. Suggested retail price: ¥2,200 [Materials] Shaft: ABS resin + coating, Grip: Brass knurling + chrome plating [Body Size] Shaft diameter 9.5 x total length 144mm [Body Weight] 20.1g [Features] ・In addition to features of a drafting pencil such as a long tip pipe, a knurled grip made from machined metal, and a metal clip, it is equipped with a shift mechanism that allows for ON/OFF switching. ・When not in use, the tip pipe is stored, preventing damage to the tip and keeping pockets and pen cases clean. ・The lead diameter is displayed when stored. The grip has a knurled finish that prevents slipping of fingertips. ・Prevents the lead from accidentally coming out when not in use. The metal design of the shaft pursues durability and a sense of unity. ・The center of gravity is towards the tip of the mechanical pencil, providing stable writing comfort. [Body Size/Weight] Shaft diameter 9.5mm x thickness 11.9mm x total length 144.0mm / 20.1g [Built-in Lead] HB [Mechanism] Knock type [Shaft Finish] ABS resin + coating, knurling + plating