Shrink Bands are a safe and effective way of meeting strict packaging requirements for the retail distribution of cannabis products. These specialized plastic bands have been carefully perforated to fit 2oz or 4oz glass jars: Clear and Opaque . Packaged in bundles of 1,000 each, these bands are ideal for the business or individual looking for both value and quantity. 1,000 units per order Fits: Glass vial 2oz or 4oz Glass Jars Clear and Opaque Band Size: 98mm x 60mm Diameter: Roughly 91mm Easy to use directions: 1.) Slide a clear band over the top of the bottle. 2.) Use a heat gun to apply! 3.) Allow bands to shrink after heat is applied, which usually takes a few seconds, depending on the heating device used.