Less than 2 weeks ago we recieved 20 Eastmall 510 LR attys with Riva batteries and juice. One of the Riva batteries is defective. It keeps heating up after you let go of the button and melts the cartridge. My wife and I have now gone through all 20 attys and every single one of them is a piece of garbage. One was DOA, and the rest all have a sickening burning taste. Some of them don't even fit the cartridges properly. They are either too tight and you have to jam the cartridge on, or too loose and the cartridges fall off. Out of the 20, there was one atty that gave me a great vape for one day until that horrible burning taste appeared. The last batch I ordered were $3 each and had some duds in it. Now they have raised the price to $4 and every atty was a piece of crap. Sorry Eastmall, but you have lost this customer. If this is what you are about, raising your prices and sending out products of worthless quality I am taking my business elsewhere.