The CKS Thndr kit is an innovative vaping kit. The device is a 240 watt box mod. Not only does it look cool, but it contains the proprietary VO chipset and supports dual 18650, 20700 or 21700 batteries. The mod also has two firing buttons. Thndr is the only mod offering this kind of versatility. The tank offers phenomenal flavor and is compatible with the Freemax Mesh Pro coils.