This product is a set of two 1 liter SodaStream bottles specifically designed for use with Soda Makers. These bottles are authentic SodaStream brand bottles, ensuring compatibility with your SodaStream machine. Perfect for creating your own fizzy drinks at home, these bottles are a convenient and eco-friendly alternative to purchasing bottled sodas. Enjoy the freshness and convenience of homemade sodas with these high-quality SodaStream bottles.