Note that the bottle selected must have a neck bead in order to hold the seal band in place.38Mm X 25 Mm , 2 Mil Thick Pvc Shrink Band Clear Pre-Cut No Print Sing Vert Perf 250/Bundle The band is plain no print and has a single vertical perforation. These pre-cut clear PVC shrink bands have layflat dimensions of 38mm by 25mm..