The 80 mm X 160 mm clear shrink bands are designed to fit all 8 oz plastic cosmo round bottles and will offer them extra protection and security through tamper-evident heat seals. These shrink bands are made from PVC plastic and are 2 mil thick, but still can be easily removed by their single vertical perforation. These perforated shrink bands are easily applied when using a heat gun, which we offer here at SKS.