These tamper evident bands are the perfect way to give your customers confidence in the purity of your cannabis when purchasing in a dispensary. Using a heat tool, these bands shrink in place, providing a clean and snug fit around the cap and body of the product. Because these tamper evident bands are one-time use only, customers can be safe and secure when purchasing products. These tamper evident bands are designed for use exclusively with 13 & 8 dram bottles.