Q: Is there any spare parts service if the order is large? A: Of course, we will evaluate the quantity of spare parts according to your order. Q: How to guarantee after sale? A: We supply 6 months products warranty. If the item was found with defective during warranty, you can contact us immediately, we would like to help you solve the problem in the first place, products will be ready repair or new one placement for you.Vape Device website:http://www.qiuqiu-vape.com/pre....filled-vape-pod/vape