Heavy Duty Polythene Grip Seal Bags 3.5″ x 4.5″

Description Heavy Duty Polythene Grip Seal Bags for storing and sorting small items whilst at the same time providing protection against environmental contaminants and moisture. These bags are thicker than regular grip seal bags, measuring 250 Gauge or 62.5 Micron, for storage of heavier or bulkier items without splitting the bag. The pinch shut grip at the top of each bag forms a strong seal to ensure that the contents of the bag remain in place.