Car Seat Adaptors allow for you to attach your Infant Seat / Car Seat to your pram or stroller. Some prams or strollers require an additional car seat adapter to allow the car seat to attach securely onto your pram or stroller. It is important that you purchase the correct fitting car seat adaptor to make sure your car seat is securely attached. They are not universal.  Some prams and stroller may already come complete with these adaptors.