HIGHLY EFFICIENT SEDIMENT FILTER SOCKS allow water to pass through while also acting as a barrier for leaves, debris, and sediment from storm water runoff FLEXIBLE DESIGN follows the contours of uneven ground for maximum surface contact IDEAL USE FOR storm drains, trench and inlet drains, stockpiles, property perimeters, light construction activities or as a check dam FILTER SOCK ELIMINATES the labor and expense of staking or trenching