Buy CO2 Supplies to refill Drinkmate, SodaStream, Aarke, and iSoda machines. Drinkmate cylinders come filled with food grade CO2. They are made of durable aluminum to US DOT standards.Two-pack of cylinders makes up to 120 one-liter bottles of sparkling beverages!Compatible with all Drinkmate and SodaStream appliances in the AmericasActual product weight (not including gift box) pounds: 5.7lbs# Pieces In Set: 1 PairNumber of Settings: 1Intended Use: BlendingMeasurements: 6 Width/Inches, 4 Height/Inches, 16 Length/InchesCapacity: 14 oz.Base Material: 100% AluminumCare: Wipe CleanDecor Styles: ModernCountry of Origin: Imported