The Britax B-Safe 35 / Elite Extra Base provides ultimate travel flexibility. The Click & Go system makes it simple to place the car seat into the base for easy and secure traveling. SafeCenter LATCH Installation creates peace of mind by making it easy to install the base correctly. The impact-absorbing base absorbs crash energy and our impact-stabilizing steel frame gives strength where you want it most. This product is compatible with the B-SAFE 35 and B-SAFE 35 Elite.