ISOfix is a system for fitting child seats in cars. The system comprises two rigid metal anchor points located in the gap between the back and sitting section of the car seat. Child seats with ISOfix contain two ISOfix arms that slot into these metal anchor points. The child seat also has a third point of support, usually in the form of a support leg that rests against the car floor.
Child seats with ISOfix are generally very easy to install, significantly minimizing the risk of incorrect use. Experience would suggest that a high proportion of traditional child seats are incorrectly installed and an incorrectly installed child seat can create a false sense of security. The ISOfix system offers a heightened level of safety as the risk of a child seat being incorrectly installed is minimal.