Before you dig, protect underground lines with this detectable warning tape from Morris Products. It's a bright red tape printed with the repeating message \CAUTION BURIED ELECTRIC LINE BELOW\ so anyone excavating will see a clear warning. More importantly, it has a 5-mil silver foil layer inside that makes it detectable with any common metal detector from about 12 to 24 inches deep. This means utility locators or construction crews can find it before they get too close to your buried lines. The tape is made to resist degradation from acids and alkalis in the soil, so it lasts. Each roll is 3 inches wide and a full 1000 feet long. It's an essential safety product for marking the location of buried electrical, communications, or other utility lines in trenches. Follow best practices and install it above your lines to prevent accidents and costly damage.