Does your e-cig keep falling out of your pocket. Does it get lost in your backpack or purse. Well an e-cigarette lanyard may be what what you need. These lanyards are specifically designed for the EGO and Enhanced Pass-Through batteries. They do NOT fit on the standard KGO batteries. It has a clip that fits over the button on the battery and a plastic clip to easily remove the e-cig from the lanyard.