Disinfected. The cover has been modified for easy washing. The original product requires removing the seatbelt and disassembling the seat to remove the cover, which is troublesome. Therefore, it has been modified with Velcro for easy removal, and is listed as "used" due to this modification. The key feature is that it can be washed immediately, and is easy to attach and detach. Suitable for newborns to approximately 7 years old. Combi Child Seat Weego Long Mover Side Protection Egg Shock IJ Black.