The Ultratape UGTGAS Underground Detectable Safety Warning Tapes 200mm x 100m is designed to fragment when disturbed in such a way that the operator will have the best chance of prior warning. This tape also has a stainless steel detection wire along the length. The tape bears the words: Caution Gas Pipe Below. BS EN 12613:2001, this warning page material is specified by major utilities. This safety wearing tape is easy to use.