Description of Watchful Eye Aloksak 5" x 4" Bag - 3 Pack When it comes to storage, it's you against the elements. Water, dust, humidity and air are just some of the threats to the objects you value most. Whether you need to protect important documents, preserve sensitive equipment or prevent the spread of liquids and odors, we offer the most advanced, effective and affordable storage solutions anywhere. ALOKSAK® and our new barrier bag OPSAK are resealable element-proof storage bags designed for a wide range of applications and environments. The transparent bags are flexible, airtight, watertight and puncture resistant. They come in multiple sizes and can be sealed over and over again. The unique materials, closure systems and manufacturing techniques are all protected by patents and meet the most rigorous testing standards. Features: 5" x 4" Pack of 3