Tether straps are an important safety feature of rear facing seats and limit the huge rebound forces. Replace your straps or get a second pair of tether straps to quickly move your seat between vehicles or while traveling. These dark grey straps will fit Britax Max-Way before October 2016. Your car seat will most likely have a white seat shell. The straps have a hook at one end and look different compared to the other straps from Britax.