New RAPIDLOCKâ?¢ Base with belt-tensioning technology provides an easy and safe installation for baby's next adventure. This new base also features an integrated SecureStopâ?¢ Anti-Rebound Bar for an added layer of safety for baby. RAPIDLOCKâ?¢ Base is compatible with any Baby Jogger infant car seat* and provides the most convenient way to use your infant car seat in multiple vehicles. With 4 different recline positions, this base can fit securely into any vehicle. Utilize the dual level bubble indicators to ensure a properly level installation while installing the base in seconds using either the vehicle belt or push button LATCH. New TRUE Test Plusâ?¢ enhanced safety standards provide additional peace of mind that baby will be protected.