Platinum Pro-Use Ballpoint Pen BSD-1500B, 0.7 mm, Fine Platinum Pro-Use ballpoint pen is made of aluminum Color coded point size indicator on the tip of the pen Ergonomic ribbed grip section Length: 5.1" (128 mm); Diameter of Grip: 0.47" (12 mm); Diameter of Barrel: 0.44" (11 mm); Weight: 0.8 oz. (24 grams) Made in Japan