Britax Safefix plus TT is an Isofix car seat that is installed with the Isofix connectors along with the top tether strap to provide extra stability & security The Safe-Fix Plus TT car seat has deep padded side wings for comfort as well as side impact protection safety. For increases safety the seat should be anchored directly to the isofix points, confirmed by the safety indicators, to work with the pivot link system reducing the forward movement. The seat will keep your child comfortable on all car journeys from around 9 months to 4 years, with 4 recline positions, back area ventilation channels, padded seat fabrics & an easy one handed adjustable headrest & harness.