SodaSparkle Multi-Sparkle 2 Starter Kit Easy Model This is a set of a charge unit and a bottle. Enjoy freshly made carbonated drinks anytime, anywhere! Make sparkling water just by "twisting," "shaking," and "pouring." Gas cartridges are required separately. There is some limescale buildup. Please purchase only if you understand that this is a used item. *Instant purchase is OK*