After I put it to the test, this heat shrink tube proved to be a lifesaver for fixing frayed wires. The glossy finish and snug fit give a professional look to the job done. In the Industrial and Scientific category this tube is a top choice for its durability and resistance to heat and chemicals .The only con is that it can be slightly tricky to maneuver around curves or irregularly shaped wires, but with some patience and practice, it's definitely worth the investment..