These heavy-duty bags provide quick and easy sediment and erosion control. Gravel bags are a basic BMP used to meet regulatory requirements for stormwater and erosion control. The sizes and industry standard allow the user to fill them up with as much or as little gravel (not included) as the application requires. These Gravel Bags are made of very high quality polymer material that is woven into shape, eliminating the flaws and failures of sewn edges. The different sized bags lend themselves to different applications; from drain protection to erosion control at construction sites. The rugged material and construction can, in most instances, withstand being driven-over, a typical problem with lesser bags. The high UV rating allows multi-year life in sun and elements.