As a hesitant buyer, I tested the Feet Meter Heat Shrink Tubing for my company`s industrial electrical needs. As a result of my tests I determined that this product is A perfect solution for industrial wires. The heat shrink tubing was easy to install and provided reliable insulation for our wires. The only con was that the color options were limited, but that was not a major issue for us. Overall, I highly recommend this product for any industrial and scientific wiring and connecting needs..