48 x 28 mm Clear Perforated Shrink band for Child-Resistant Liquid Bottles, Woozy Bottles, Large Boston Round Bottles and More. [Compatible Diameter Range: 3/4" &ndash; 1 1/8&rdquo;] - Bundle of 250 Shrink bands provide a professional look to your products while simultaneously offering a tamper evident safety seal. Not only is a tamper evident seal required in most cases, but it also gives your customers confidence that your product is safe for use. Layflat dimensions: 48 mm x 28 mm (1.89 in x 1.1 in) Works best for lids with a diameter between 3/4" - 1" 2 Mil Perforated Clear PVC Plastic Examples of products this works best with: Child-resistant liquid bottles, woozy bottles, large boston round bottles and various other types of containers. As there are many different types and sizes of containers, it is best to measure your specific diameter to ensure you purchase the correct size!