NESCO Vacuum Sealer Rolls can be trimmed to make custom-sized bags. The material is designed to lock freshness and flavor in and keep air, moisture, and odors out. The multi-layer construction is tear-resistant and is designed to perform at extreme temperatures. Eliminate freezer burn and food waste. Cross-venting channels on both sides allow for maximum air extraction and slow down traveling liquids when sealing moist foods. Material is BPA-free, PVC-free, Phthalates-free and is microwave, boil, sous-vide, dishwasher and freezer safe. NESCO Vacuum Sealer Rolls are ideal for keeping food fresh up to five times longer than traditional methods. Compatible with NESCO and other brands of vacuum sealers