Due to the bad reviews and the name of the seller, I was rather skeptical about this product. I wouldn't normally pay that much for heat shrink either, although I didn't pay attention since it was a new $350 car battery. This tubing is incredibly strong and thick, the adhesive is heated and applied evenly, and as you allow gravity to act on the heated portion the adhesive will slide out of the tubing a bit, ensuring you have a complete weatherproof seal on your inner wire . You can't go wrong…