Review on Battery Shrink Length Width 250±5MM by Brandon Wynen

That was way more than the advertised packaging needed. It gets the job done, but is difficult to handle and process, and becomes thick and brittle when compressed to this pack size. I was hoping it would pinch more at the edges but being so large it wouldn't shrink much more than a 3s 5p pack size. As long as you have a heat gun you should be fine.