After trying this product, I have found that it is perfect for my industrial electrical needs. the shrink tubing was easy to use and the 70mm size made it great for larger wires. The tubing also provided great insulation and protection from any potential damage. The only downside was that the packaging was a bit difficult to open. Overall, this product is a great value for anyone looking for high-quality heat shrink tubing for their industrial and scientific needs. .