The top of your wrap or even the "terminator" from the foil at the base from the strip beside the outer jacket is usually hard to see and to search out. If you will find this "terminator," you can nick it with a small Minimize with a knife and peel https://media.wakelet.com/docs/yf36gaZ-jTJjKzXK1WRSk?sig=7ef44d67d19127b4e8275f3ebe630d6062da0c8f059486c234d8b90fc2340737