With the FLEX BASE iSENSE, you are ready for four years of convenient safety on the road. The modular base is compatible with the BABY-SAFE iSENSE and the new BABY-SAFE 3 i-SIZE, as well as the DUALFIX iSENSE ? and each of them can be installed on the base with just one click. The rotating feature allows you to turn each seat towards the car door, making it easy to place and harness your child. Additionally, the DUALFIX seats can be turned 360 degrees, allowing forward-facing travel when your child exceeds 15 months and 76cm. Features: Modular Base system - The modular FLEX BASE iSENSE is compatible with the BABY-SAFE iSENSE, the BABY-SAFE 3 i-SIZE, and the DUALFIX iSENSE. Easy access - The rotating feature of the base allows you to turn the seat to the car door, allowing you to easily place your child in and out of the seat. Adjustable rebound bar - The rebound bar not only helps to prevent the child car seat from tilting in an impact, but can also be adjusted by an entire 8 degrees.