If you live in a not so new home, such a repair tape is worth gold. Somewhere dripping always something and if not, then it's a cable or verPiePte water hose in the garden. Something is always. :) I was very skeptical because I had bought a similar band before, but it is currently not allowed close reliably. The repair of Scotch tape has proven itself particularly in the sanitary area. Especially the ability to apply this and outdoors is handy. 3 meters seem at this price not very much, but the ribbon can be more than 650% stretch, which is almost 20 m. However, a band or part thereof is not last forever and lose adhesion.
But in tricky, tight spaces such as heating such a tape is extremely helpful and has already held more than once saved his neck, and feet dry us. Not cheap, not exactly cheap, but reasonable.