This is a Britax child seat, purchased from a Mercedes-Benz dealer. It was used for about a year and is now being sold. It comes with a newborn cushion and can be used from birth. It was convenient for carrying the child, as you could take them out of the car while they were still asleep. It's currently set to the smallest size, but as shown in image 5, you can adjust the head position by pulling the headrest forward and up. All covers have been removed, washed, and stored. Baby Safe Plus II Allows you to move the baby out of the car while they are still sleeping, making it suitable for everyday use. Includes a sunshade. This is a seatbelt-fixed type. It is compatible with all-direction collision shells & side-impact protection, and also compatible with child safety seat sensors. Manufacturer's suggested retail price (including tax): ¥51,700 Suitable weight: Up to approximately 13kg For infants (newborns to approximately 15 months old) Weight: 5.7kg