How to pick 30ml eliquid bottles for your ZampleBox
Click "My Next Box" in your account page to go to the add-to-box menu.
Click any "OPEN" slot to add a product to your next box. (NOTE: More slots will unlock each month until your box is maxed)
Make sure that "30ml" is selected in order to browse available 30ml bottles.
Click "ADD TO BOX"...