Gravel Bags can be used for drain protection and erosion control and are considered a Best Management Practice (BMP). Gravel Bags are made of high quality polymer material that is woven into the shape of the bags and come available in green or orange colors and individual or roll form options. These Gravel Bags are made of a rugged material and, in most cases, can tolerate being driven over. Sizes are industry standard and customers can fill Gravel Bags with as much, or little, gravel as needed. The high UV rating of the Gravel Bags allows for multi-year use in the sun and elements.