Best Selling Mystery Boxes - Here you will find best selling mystery boxes. Huge variety of different mystery boxes to fit your personal needs, it goes from Shortfills ONLY Mystery Boxes, to Vape Kit + E-Liquid Mystery Boxes. The content of the box represents a certain value. For example, you buy a mystery box online for £50 and receive products with a value of £200. Find out which mystery boxes sell the best on Ecigone.