Sturdy, disposable bags are easy to open and easy to fill. Their unique interlocking zipper seals securely; locks in freshness and protects foods from drying. Designed for saving space while storing food, portion control, food preparations and transportation. You can write on the labels for easy identification and date coding. Dispensing cartons are color-coded for kitchen organization. Bags are microwave safe and manufactured to meet FDA requirements.Triple System Seal—.