Terra Tape® underground marking tape is your last defense against dig-ins and the repair expenses and loss of revenues from dig-ins. Locate, identify, and protect against dig-ins on communications cables and ducts with Terra Tape®. Available in 3”x6,000’ and 6”x6,000’ rolls on plastic cores for plow installations. Terra Tape® is available in several non-detectable and detectable grades. Terra Tape® division Reef Industries, Inc. manufacturer of high-strength reinforced plastics since 1957.