Consolidated Plastics has sold Minigrip Bags since our founding in 1981. Minigrip has been the leader in quality since they invented the plastic zipper bag in 1961. Consolidated Plastics Reclosable Bags offer an economical alternative to the top of the line Minigrip Brand Bags. The most popular size bags come with a white patch option for writing. Our Reclosable Bags come in 2mil, 4mil, and 6mil thicknesses. For transporting specimens & samples between laboratories, try our Whirl-Pak Disposable Sampling Bags. They are designed to keep the liquids inside the bag during shipping.