The Diono Easy View Back Seat Mirror offers 360-degree rotation to provide the perfect angle to keep an eye on baby without having to adjust your rearview mirror. The large, 7" shatterproof mirror uses a shallow convex design to give the largest and clearest reflection available. Installation is simple, and works with any seat headrest. Because of the ability to adjust the angle for the perfect view, the mirror does not have to be placed directly above the baby.