Color: White Pattern: Solid Type: Carrier Usage: 1-Way Specifications: 0 months I purchased this used on Mercari in February 2025. I used it for about 3 months. From about 10 days old to about 4 months old (when the baby can hold their head up) Although not a perfect fit, it can be used with Ergobaby-type baby carriers other than the napnap baby carrier. There is no instruction manual, but the usage instructions are written on the side of the box. Please understand that the box is not in perfect condition, as there are some corner scuffs and tape marks. It will be used for packaging.