This adapter is a lifesaver! My baby was born super tiny and although the baby jogger pram/stroller was suitable from birth. My baby still looked super tiny in the pram, as we had already previously brought a maxi cosi cabriofix car seat, we were worried that we either had to buy another pram or car seat. This would have been such a waste of money! Luckily, we came across these adapters and they were exactly what we needed. They were a bit fiddly to install the very first time as we found the instructions to be a bit confusing, but after it was installed, they didn't need to be removed. They are super sturdy and so easy to fit the car seat on, I haven't had any issues with them and would absolutely recommend this product.