Minigrip MG3775 Reclosable Poly Bag 12 x 12 In 4 Mil PK500

Packaging solution for high-volume shipping

The Minigrip MG3775 reclosable poly bag measures 12 by 12 inches with a 4 mil thickness and comes in a pack of 500. Transparent construction allows quick visual identification of contents during packing or inventory checks. The zip-style closure opens and closes repeatedly without losing seal integrity. This bulk quantity suits warehouses, fulfilment centres and mailrooms that process large daily volumes.

Durability and handling in daily use

Four-mil polyethylene resists punctures and tears when loaded with hardware, parts or literature. The material stays flexible in typical warehouse temperatures so bags do not stiffen or crack during handling. Low-friction surfaces slide easily on conveyor belts and packing stations without jamming. Each bag weighs very little, keeping dimensional-weight charges low for outbound shipments.

Upgrade from thinner single-use bags

Operations switching from 2 mil single-seal bags gain a stronger seal that survives multiple opens and closes for returns or quality checks. The heavier gauge reduces split seams on heavier items such as tools or dense components. Buyers who need tamper-evident features or moisture-barrier films will not find those properties here. The step up is worthwhile when reusability and tear resistance outweigh the lower per-unit cost of lighter alternatives.