Sparkling water with iSi soda capsules. Each capsule contains 8.4 g of pure CO2. The iSi soda capsules are gold colour and are made from 100% recyclable steel. One pack contains 10 capsules. Notes: soda siphon and capsules only use according to instructions (English language not guaranteed). Each capsule for preparing 1 litre of soda water. Soda capsules are not refillable. Box contents: iSi Soda Chargers soda capsules 10 capsules 84 g pack of 6