ISOFIX is the international standard for attachment points for child safety seat in passenger cars. It is developed in partnership with the automotive industry in order to set up a standard, universal means of attaching child restraints, eliminate fitting problems common with the use of adult seat belts and improve performance in a crash by connecting the child seat directly and rigidly to the car structure. You need ISOFIX anchorage in your car to be able to use ISOFIX installation, but you also can install these car seats in a car with seat belt only.
The benefits of ISOFIX Car Seat:
(1) Standard, Easy and Secure installation, no need seat belts.
(2) Solid and permanent connection between car seat and the car body
(3) Proven to be outstandingly safe in tests