Creamright Ultra-Pure Whip Cream Chargers, Case of 240 8 Gram Highest Quality European Nitrous Oxide Whipped Cream Chargers Each carton contains 10 x 24 Ultra Purewhip Nitrous Oxide Cartridges- 8 grams of pure nitrous oxide per cartridge Compatible: All Standard 8 gram Nitrous Oxide Whip Cream Makers including iSi, Kayser, Mosa, Liss Produced in Europe's most modern facility by Austrian based company with decades of experience in this technology The carton of 240 cartridges is a popular option for the home and low volume commercial user; Minimum shelf life of 5 years