We are super excited to get our hands on these. No more spilling ejuice, no more cleaning up with paper towels every time you have to refill your Squonk Bottle. This makes your life so much easier and cleaner. The MM Squonker Refill System is going to save you lots of time, as well as a much more convenient way to fill your Bottles. All you have to do is attach the Supplied Tube to the Squonker Lid & then to your Unicorn Bottle. The Lid should fit all size Unicorn Bottles, but it also comes with 2 size Bottles in case you need them.