Contain in-plant spills under leaking equipment and machinery. Mini-Boom's are dust-free and contain no abrasive granules that can damage expensive equipment. That's because they're made from an innovative microfiber material which contains millions of tiny pockets that are able to absorb and hold petroleum-based liquids. 3M petroleum sor-bents allow you to reclaim the oil for easy recycling and re-use. Each case contains 4 booms which will absorb approx-imately 3 gallons each.