SKS offers the 69 mm X 46 mm clear shrink bands here in a bulk option and they are effective for adding an extra level of protection to products through a tamper-evident seal. These shrink bands are made from shrinkable PVC plastic and are compatible with a long list of products that range from 1 oz plastic straight sided jars to 16 oz glass sauce bottles. For a simple removal, these shrink bands have a single vertical perforation and SKS also offers a heat gun kit that can be paired with these bands to make the application quick and effective.