The Be Safe iZi Modular X1 i-Size Car Seat in Premium Car Interior Black is the upgraded version of the iZi Modular i-Size. The iZi Modular X1 is an upgraded version of the Modular Family innovative child safety system from Be Safe, suitable for children aged from 6 months to 4 years old. The X1 is equipped with additional Side Impact Protection, Dynamic Force Absorber, Ergo-Move Shoulder Pads and Two-Fit Cushions and can be used in both - rearward-facing and forward-facing modes. Please note: this car seat must be used in conjunction with the iZi Modular i-Size Base (sold separately). The iZi Modular X1 can be used both rearfacing and forward facing on the same base. The base module can be extended to allow more legroom for the child, which means children up to the age of about four years (105 cm tall) can be transported rearfacing. The Be Safe iZi Modular X1 i-Size can easily be installed on the iZi Modular i-Size base. Just click the seat onto the base and you are ready to go. The i