Using this hands - free baby bottle holder strap is easy. First, attach the strap securely to the stroller. Then, place the baby bottle into the holder. Make sure the bottle is firmly in place before offering it to your baby. When using, keep an eye on your baby to ensure their safety. After each use, clean the bottle holder with mild soap and water. Let it dry completely before storing it. Avoid exposing it to direct sunlight for a long time to prevent color fading.