Thick PTFE wolfpack tape. - Adhesive tape. - Width x length: 19 mm. X 50 meters. - PTFE is a material used in plumbing to prevent leaks. It is a kind of adhesive tape used on threads. It makes the joints between pipes and the joints of taps and stopcocks watertight. Just wrap it around the thread several times for the PTFE tape to set and act as a water barrier. - Minimum sales unit Package 5 rolls - Article of similar use to the one popularly known as Teflon.