The Caliburn Replacement Pod Cartridges by Uwell are advanced pods designed specifically for maximum compatibility with their Caliburn 11W Pod System. Each cartridge holds up to 2.0mL of your favorite e-juice, heated by its built-in 1.4ohm coil. Pods are refilled through a simple top-fill system which is sealed by the drip tip itself. Available in packs of four. Product availability can vary per store. Website listing does not guarantee product will be in stock.