The Uwell Whirl S2 Pod Kit is a pen-shaped pod system with an aluminum alloy shell. It is perfect for people who value flavorful vape and simple design. The WHIRL S2 will provide you with a satisfying vaping experience with its 3.5ml e-liquid capacity, 900mAh battery, and maximum 17W output power. There are six gorgeous colors to choose from, including Red, Black, Brown, Silver, Blue, and Green. The Uwell Whirl S2 Pod Kit is a pod with replaceable coils.