These 4 x 8 inch reclosable poly bags are built from 8 mil polyethylene, placing them firmly in the super-heavyweight category. The full-width track zipper supports repeated opening and resealing without seal degradation, making these bags reliable across both initial packing and downstream inspection or redistribution steps.

The 8 mil construction handles sharp-edged metal parts, dense hardware, and heavy industrial components that would puncture or distort thinner poly bags. FDA and USDA compliance extends their suitability to food manufacturing, pharmaceutical packaging, and laboratory sample storage — anywhere food-contact or regulated-environment requirements apply.

The bags are made from polyethylene and carry no added treatments or coatings. Each case contains 1,000 bags and is eligible to ship via parcel carrier.