Preserve and protect medicinal cannabis and pharmaceuticals with a child resistant bag. This is our 1 1/2" x 4" single use tamper-proof bag in matte white. This bag has a high metallized barrier to restrict smells and water vapor from escaping. The simple matte white 4 mil material offers the desired heavy-duty thickness and opacity to protect the inner contents of your adult use items. Ideal for small amounts of marijuana, edibles, concentrates, and small pharmaceuticals, this single serve bag is smell proof, has no tear notches, and is made 5 mm seams. This bag can be heat sealed using a hand sealer for a tamper-resistant closure.