Baby Safety Cushion Backpack + Head Bump Prevention Head Guard Set - Function: Safety cushion to support the baby's head Each was used for about 3 months. Also, the neck straps were cut off because the baby didn't like the hat and they were dangerous. Used from around January 2025. Stored at home after use. There are signs of use and stains. Please check the photos. Please understand this before purchasing. No returns accepted. Thank you for looking.