Review on Wirefy 275 Heat Shrink Tubing: Efficient Cable Insulation for Professional Use by Rob Madden

This is probably the best whistle set I have ever bought and I will be buying more in the future. The only thing I can fault is that there is barely enough of it to cover both ends of the butt connector. There may be 1/16 inch on either side of this once it shrinks. I like at least 1/8 and I would rather see 1/4. Besides, they are amazing. They ensure a good seal around the respective wire. You can see a small amount of glue seeping out of the ends which helped me make sure they did their job. I'll see if they sell it in rolls. If so I will be purchasing some rolls so I can make my custom sizes.