The Ergobaby RearView Mirror is a patented retractable convex mirror which clips easily to any baby carrier and gives you a full view of your child. Now you can sneak a reassuring peek when your baby is on your back in any type of carrier or backpack. Simply pull it out, check your child, and it retracts back. Locking clip attaches securely to your carrier. The Ergobaby RearView Mirror is more than a mirror. It is peace of mind!