Spill Containment Berm Bottom Inside Dimensions 4 ft W x 4 ft L Bottom Inside Length 4 ft Bottom Inside Width 4 ft Color Black Dimensions 4 ft W x 4 ft L Height 12 in Includes L Bracket Includes Wellhead Hood No Indoor/Outdoor Use Indoor Outdoor Length 4 ft Manufacturer Warranty 1 yr Material Polyethylene Material Thickness 40 mil Recycled Content ( Percent) No Recycled Content Shape Square Sidewall Support Material Aluminum Sidewall Type L Bracket