The NatureVac Vacuum Seal Bags Black & Clear 11in x 19.5ft (2 Rolls/Box) provide a practical way to preserve food freshness by creating a tight, reliable seal using most standard vacuum sealing machines. Made with a dual-layer design—black on one side to block light and clear on the other for easy visibility—these rolls can be cut to custom lengths for various storage needs. The textu... https://www.hydroponicstown.com/799080-naturevac-vacuum-seal-bags-black-clear-11in-x-19-5ft-2-rolls-box