As a hesitant buyer I was pleasantly surprised with the Dia White Shrink Tubing Piece. As someone who works in the Industrial and Scientific field, i am always on the lookout for reliable products that improve my work. This tubing piece did just that .It shrinks easily and provides a tight seal on my wires, preventing any potential dangers. The only downside is that it took me a few tries to get the perfect amount of heat for the tubing to shrink without melting. However, once I got the hang of it, it was smooth sailing..