Titanium "Standard" sized keychain lanterns! A stylish way to keep track of your keys in the dark! Measuring 1-1/4"long by 3/8"" diameter these are machined from a solid bar of 6al4v Aerospace grade Titanium and finished to your specifications! 30 circumferential holes allow the light to shine out. These lanterns come with a phosphorescent insert (charged by ambient light, glowing for hours per charge). In your choice of Blue or Toxic green insert color! The insert pocket is sized to take a 3x22.5mm insert if the customer chooses to easily install their own Tritium insert. (DOES NOT INCLUDE TRITIUM INSERT! Comes ONLY with a glow insert!)