Hello, I would like to warn everyone to not do business with Knight Sticks. the Customer Service is terrbile! I have purchased cartriges and after one week, I haven't got my shipping confirmation number.! I paid an extra $12.95 to receive EXPRESS shipping. I call in every day to check on my order status, it is still PENDING. If you are looking into getting an electronic cigaratee, try www.greensmoke.com Knight Sticks is horrible! they are TRYING to put there customers through ***. The customer service there keeps saying stuff I... read full review »