Cream whipper and charger systems are invented by Whip-It"s original manufacturing partner in Switzerland in 1950"s. * Each charger is cleaned numerous times with a solvent * Each charger is filled with 8 grams of highest quality medical grade N2O and made out of 100% recyclable steel * Food grade N2O is used as a propellant for whipping cream, which dissolves in the liquid cream * This item is not for sale in Catalina Island