1.Durable design without PCB board, avoid Short Circuit and Breakdown
2. Special switch to avoid the misoperation
3. Safety and healthy for pass CE/FCC/ROHS certificate
4. Long tube for 1 pc 18350/16340 battery
5. Long tube with extended tube for 1 pc 18650 battery or 2 pcs 18350/16340 batteries
6.510 thread, compatible with almost all atomizers
7. Different kinds of batteries and atomizers are available for special kits according to your requirements
8. Copper chrome and Stainless Steel to choose
