Spill Berm Corner, Length 9 In, Width 8 1/2 In, Height 2 1/2 In, Color Orange, Material Urethane, Net Weight 3 Lb, For Use With 2101 To Make 90 Degree Corners, Helps Comply With NPDES (National Pollutant Discharge Elimination System) and SPCC (Spill Prevention, Control and Countermeasures) Rule