Family adventures don't have to wait - start strolling as early as 1 month with Burley's Baby Seat Insert! Installation is quick and secure, and soft materials keep infants cozy and safe while they go along for the journey. Features: For use while strolling as early as 1 month Soft hammock seat keeps infants comfortable Breathable mesh sides keep your child cool Secure 5-point harness Quick and easy installation Connects to Burley trailers that have a 5-point harness