Tamper Evident Shrink Bands Heat Seal are clear plastic bands that wrap around the opening of a container. Once the heat is applied to the band, it will shrink and fit onto the container in seconds. It is one of the most effective ways to create consumer confidence and properly protect your product packaging.
How to measure?
To determine the size of the shrink wrap band you need for your product container, measure the circumference of the object's widest point, then add 10-15 percent, then divide by two.
For example, if you have a cosmetic container that has a 100 mm circumference, the equation would be: 100x10%=10 then add 10 to the circumference 100+10=110 then divide by 2, 110/2=55 mm. Base on this example, the ideal shrink band choice will be SKU# 9540 with a 57mm width. If the result of the calculation is in between 2 shrink band sizes, select the next up in the width size.