2. About cartridge :

a) Cartridge flavors: State Express, Kool, Mint, Hilton, Old Captain, Coffee, Cherry, Rose, etc

b) The  content in the cartridge is classified into high, medium, low and zero with various tastes to meet the needs of the different people.

c) According to the customer request to adjustment  concentration and flavor.

3. We Promise

a) We accept samples to test the quality!

b) If the quality is not perfect, we will return double money of the goods!

If your order quantity is large, we can return part or whole of the payment for sample!