Mars 123 car seat offers an all-in-one package who wish to transfer their little ones from an infant car seats to the next stage of car seats because they have outgrown it. Additionally, Mars can be an excellent choice for toddlers and older children because of its value and versatility of being able to remove the back and only use the bottom booster part. The headrest is also adjustable to multiple heights, so you can adjust it as your child grows. The car seat has been certified with European standards for car seat safety of ECE R44/04, and the cover is also removable and washable so you can use it for many years with certainty.