This is a Konny baby carrier! It can be used from 2 weeks old. I bought it but didn't use it, so it's a new, unused item. Size is adjustable! No box! Other accessories are included! I bought it for 8,280 yen. Konny Baby Carrier FLEX AirMesh Size Adjustable - Brand: Konny - Color: Charcoal - Material: Mesh - Accessories: Instruction manual - Size: XS-XL Thank you for looking.