In terms of safety the transformer pro corresponds to the transformer x bag in every detail the seat can even be used for a child from the age of 9 months with the impact body without the impact body it can then be used from age three through to twelve therefore only one child seat is required for the entire period of the conveyance obligation up to 12 years the transformer pro is also characterised by maximum ease of use the impact body is simply secured with the three point belt and acts