The tip on the wrap or even the "terminator" from the foil at the base from the strip next to the outer jacket is commonly difficult to see and to uncover. If you could find this "terminator," it is possible to nick it with a little Slash with a knife https://dienphucthinh.blogspot.com/2025/04/au-cos-cap-ien-chinh-hang-tai-ien-phuc.html