The carts that puffin La vape takes advantage of is seen on lots of types of cartridges now. There is nothing one of a kind about them other than its convenience and simplicity. Also, these carts do Have a very twist on mouth piece, allowing you to reuse them. See https://mysocialport.com/story4497693/puff-la-2g-disposable-vape-best-black-friday-deals-no-further-a-mystery