This 4 mil black poly tubing is manufactured from virgin low-density polyethylene (LDPE) and supplied as a single 725 foot roll. The fully opaque black film blocks light and conceals contents from visual inspection, making it a practical choice for light-sensitive materials, security packaging, and products that require discretion during storage or transit.

The open-ended tube format suits packaging lines that handle variable-size items — operators cut lengths on demand, insert the product, and heat-seal both ends with a compatible impulse sealer. This approach eliminates the need to stock multiple pre-made bag sizes and is commonly used in manufacturing, e-commerce fulfillment, retail distribution, and industrial shipping environments.

At 4 mil thickness, the tubing delivers puncture resistance and durability appropriate for heavier or irregularly shaped items. Each roll weighs approximately 11.16 lbs and is sold individually.