A rod of Kel was an ancient weapon of Vulcan design that was made before the Reformation. They were psionic-based technology devised by trained Vulcan telepaths who crafted the silvery rods that had Vulcan writing inscribed on their surface. Each rod drew upon the telepathic energies and lifeforce of the user in order to operate with not only Vulcans but other telepaths being able to use them. This energy could be used to fire powerful psionic short ranged blasts that wounded enemies or could be used for either feats such as healing.