The car seat rotates 360 degrees, allowing you to rotate the seat toward your car door while helping your child in and out. Because the Sirona S can swivel from rear-facing to forward-facing, you may only need to install it a single time using the vehicle seatbelt and EasyLock system for a simple and secure installation. The Cybex Sirona S is also the only American convertible car seat with a load leg, a metal bar that extends from the base of the seat to the floor of your car to inhibit movement and prevent head injury. Energy-absorbing pods that extend from the sides of the seat to absorb 25% more forces in a crash, while SensorSafe technology integrated into the chest clip sends safety alerts to both a vehicle receiver and a smartphone. The alerts notify parents to potentially dangerous situations, like a child being left in a car, an unbuckled chest clip, unsafe temperatures or a child seated for too long. With features like a no-rethread harness, included cup holder and numerous recline positions, the Cybex Sirona S offers the ultimate in convenience and safety for your child from birth to 65 pounds.