IsoFamily™ i-Size car seat base with IsoFix - great for peace of mind for parents. Just click into your IsoFix points in the car, place your SnugRide®/SnugEssentials™ or Ascent™ i-Size car seat onto the base, position your leg support and once the colour indicators are GREEN you are good to go! With 7 different positions, you can adjust the base to have the best fit against your vehicle seat.