A Man, and a Pen, on a MissionA proponent of the scientific method, Paul Fisher introduced his chrome Bullet Pen in 1948. His innovative thinking led to the development of the Space Pen in the 1960s. With its pressurized ink cartridge, it could write upside down, under water, through grease and in zero-gravity vacuum of outer space. Since its introduction, the Space Pen has been on board every American and Russian space mission. Choose your Bullet Space Pen from a wide variety of colors. All these lacquer models engrave beautifully. Order extra pressurized refills, also available in a wide range of colors. Pocket clip available separately.Overall Size 3 3/4 in. x 7/16 in. (95mm x 10mm)Body 3 9/16 in. x 3/8 in. (90mm x 9.5mm)Cap 2 9/16 in. x 1/2 in. (65mm x 10mm)Weight 15 gComposition Lacquer over brassEngraving This pen does not have a space for engraving or the material simply does not allow us to engrave.This pen is delivered with a black medium point refill.