Voopoo VMATE V2 Replacement Pod Cartridge has a 3ml capacity and is simple to refill. It is compatible with the VOOPOO Vmate Kit Infinity Edition and the VOOPOO Vmate E Kit. You can choose between 0.7ohm and 1.2ohm pods. It is made of PCTG, Silver Ion material. This Pod Cartridge comes in packs of two.