Designed to fit the popular maxi cosi cabriofix and maxi cosi pebble simply attach the adapters to the pushchair and then add the maxi cosi cabriofix car seat not included the adapters are easy to attach and remove features simply attach to the baby jogger pushchair compatible with the maxi cosi cabriofix car seat not included please note that these adaptors will not fit the baby jogger versa or select models