Combi Child Seat Weego Egg Shock LYF-375 Combi Child Seat Weego Series Model: LYF-375 Age: Newborn ~ Weight: Under 18 kg Thank you for viewing. I used this from the newborn period until one and a half years old. Since this item requires shipping costs, I will wrap it in bubble wrap and then attach the shipping label. I am also selling a Combi stroller, and I will offer a discount if you purchase them together.