Abstract: A flexible bag-like enclosure is carried by a movable arm so that it may be suitably located at any desired position and selectively raised and lowered as desired. A fitting is coupled to the opening of the bag-like enclosure and connected by a length of flexible hose to a source of low-pressure fluid under the control of a selectively actuable valve. The bag-like enclosure includes a substantial quantity of relatively dense, particulate material. A lower surface of the bag-like enclosure has a plurality of openings of a size substantially less than that of the individual particulate members so that they will be retained within the enclosure.The bag-like enclosure is rested on an object to be moved such that the enclosure lower wall will conform to the surface of the object.