These 7" x 9" 3 Mil co-extruded vacuum seal bags with black back are engineered for commercial vacuum packaging operations that demand consistent performance and product protection. Manufactured from multi-layer co-extruded film, these commercial vacuum bags deliver excellent strength, clarity, and puncture resistance, making them ideal for packaging meats, cheeses, prepared foods, and other sensitive items. The 3 Mil thickness provides a reliable barrier against oxygen and moisture to help extend shelf life and maintain product freshness throughout storage and distribution. Designed for compatibility with most commercial chamber vacuum machines, these vacuum seal bags ensure fast, dependable seals for high-throughput environments like food processors, butcher shops, commissaries, and institutional kitchens. The co-extruded construction offers superior seal integrity compared to standard single-layer bags, reducing the risk of leakers and returns.