These 9 x 12 inch flat poly bags are manufactured from 100% virgin polyethylene film at an 8 mil thickness, placing them firmly in the heavy-duty category. That gauge delivers puncture resistance and tear strength well beyond standard 2 or 4 mil bags, making them suited for dense, abrasive, or sharp-edged items that would compromise lighter films during storage or transit.

Open-end construction supports flexible closure options including twist ties, bag tape, or impulse sealers, giving operations the freedom to match the closure method to the application. FDA and USDA compliance makes these bags appropriate for food-contact and other regulated environments — a meaningful advantage for processors, distributors, and facilities that require documented material compliance.

Each case contains 500 bags at approximately 28.7 lbs. The 8 mil construction adds measurable case weight relative to lighter gauges, so plan workstation placement and bulk storage accordingly. These bags are stocked for repeat purchasing and integrate cleanly into procurement workflows for manufacturing, hardware distribution, and fulfillment operations.