These 12" x 16" 3 Mil co-extruded vacuum seal bags with black back are engineered for demanding commercial environments where product integrity and shelf life are critical. Manufactured from multi-layer co-extruded film, these commercial vacuum bags provide an excellent oxygen and moisture barrier, helping to preserve freshness, flavor, and appearance for meat, poultry, seafood, cheese, and other perishable products. Packed 500 per case, they offer consistent performance and sizing for high-volume operations that require dependable packaging. Designed specifically for use with commercial chambered vacuum machines, these vacuum seal bags are not intended for at-home Foodsaver-style external suction units. Their robust 3 Mil thickness and high-clarity film support strong, secure seals that withstand rigorous processing, storage, and distribution conditions.