The present invention, inflation for the inflatable restraint system in a motor vehicle - to provide the data 10. This inflation - data has a plurality of expansion opening 40, and the first of propellant loading 28 position, defining a first combustion chamber 25, elongated inflation - including the Tabodi 11. Partition assembly 26, inflation - Tabodi within are nested in 11, it is located in close proximity to the second end 17. Partition assembly 26, the second of propellant loading 38 is located, to define a second combustion chamber 35. Provided first and second starting device 12 and 9, they are operable selectively, to ignite the propellant loading 28,38 respectively, whereby the inflatable through a first chamber 25 supplying inflation gas to the restraint cushion.