1 Mil Clear Poly Bags on a Roll Features. These bags are on an industry standard core which makes them compatible with all automatic packing equipment. Roll converts from 1 to 3 core. Bags are preopened at one end and sealed. Perforated for easy tearoff. Manufactured from 100 virgin film. Approved and Certified. Close bags with twist ties bag tape or heat sealSpecifications. Color Clear. Material 1 Mil. Country of Origin USA. Dimension 12 W x 15 L