Specification: Product name: Titanium Alloy Cylinder Keychain Lantern
Material: Titanium Alloy Keychain
Size: 33mm x 9mm (length x width) Weight: 4.1g Tritium Vials
Size: 3x 22.5mm Tritium Vials
Colour: green, blue, white, orange
Features:1. It is a keychain fob specifically designed to hold a standard 3x 22.5mm self-luminous tritium vial.2. Tritium vials come in a variety of colors, & will glow for many years without requiring any type of charging from sunlight.3. The light never needs batteries, & is really only visible as a glow in low light conditions inside about 30 feet. Pretty much its just a cool way to accessorize your stuff. Package included:1 x Titanium Alloy Cylinder Keychain Lantern