Nitrous Oxide N2O Whipped Cream Charges 10 pack ISI Each cartridge contains 8 grams of authentic iSi nitrous oxide Each charger is made of recyclable stainless steel 24 cartridges per box Compatible with all standard whip cream dispensers Professional model for making whipped cream and light desserts. Brushed stainless bottle and valve. Includes two decorator tips and recipe book. Yields five times the initial input. FYI: N2O charger required for use. NSF. Warranty: 2 Years.