Product Name: BabyBjorn Baby Carrier ONE KAI AIR Baby Carrier Navy Blue Age Range: 0 months - 36 months The item hasn't been used very often, but it has been used by a child, so please be aware of this. I can't find the box, so I plan to ship it as is. I have twins, so I'm also selling other baby carriers. Please take a look if you'd like. Product Overview: ● Made entirely of mesh material for excellent breathability. Usable from newborn to approximately 3 years old. ● 4 carrying positions: front-facing in, front-facing out, back carry. Comfortable shoulder pads. Designed specifically for the Japanese physique. ● Easy back carry! Slide-and-go! ● One-handed buckle operation. ● 3D structure that conforms to the baby's body. Weight: Approximately 1kg ONE KAI, ONE+, Mini Air, Original, Move, Harmony, Limas, Omni, Adapt, Embrace, Away, Koala, Konny, Nuna, Koya Ailebebe