The Nanit Swaddle Starter Pack includes a small size swaddle and breathing band designed for newborns to infants up to 3 months of age. Both items are made from soft and breathable cotton material in a sleek black color, suitable for both boys and girls. The swaddle provides a secure and cozy feel to help babies feel calm and safe during nap time or bedtime, promoting better sleep. The breathing band offers added comfort and support for easy breathing while ensuring a snug fit for your little one.