Bag of Shifting Sand

A small bag blessed by desert spirit. This small bag contains 25 Gallons of warm fine ground sand. this sand can be dumped out at a rate of 5 Gallons per round or otherwise manipulated magically. The bag will not invert while it contains more than 5 gallons of sand. If Dirt, stone, or other non magical material is placed within the bag and left for at least an hour, the items will be ground into fine sand by the bag's magic.