We offer a large selection of Poly Bags - Perforated on a Roll. You can search many types of Clean Room Flat Poly Bags, High Density Poly Bags - Perforated on a Roll, Low Density Large Poly Bags - Perforated on a Roll and Low Density Poly Bags - Perforated on a Roll. Clean Room Flat Poly Bags to keep products and supplies free from contamination. Clean room poly bags are manufactured and packaged in a Class 100 clean room environment and are ideal for aerospace, pharmaceutical, medical. High Density Poly Bag perforated for quick tear off! Choose economical low-density bags or stronger, thinner, high-density bags. Low Density Poly Bags - Perforated on a Roll for quick tear off! Choose economical low-density bags or stronger, thinner, high-density bags. Standard 3" core.