One charger for up to 0.5L of cold coffee, beer, beverages, etc. Use cream whipper and soda maker and chargers only according to instructions. Do not inhale! Chargers are under pressure and non-refillable! Keep out of sun or heat, do not store 50°C. Volume 10.4ml. Approx. weight 24g per charger. Contains approx. 2.0g pure N2 (nitrogen) E941. Store cool and dry. Do not force or damage chargers. Keep out of reach of children. Dispose of empty chargers or empty packaging only! Recyclable steel chargers.