The Uwell CALIBURN KOKO Refillable Pods are a set of food-grade plastic pods featuring a 2.0mL refillable pod, 1.2ohm Pod Coil Resistance, and possesses a top fill system, stoppered by the top cap drip tip mouthpiece. Uwell CALIBURN KOKO Refillable Pods Features: 2mL Capacity Juice Pods.