Use these Security Seals with your mailing pouch for tamper evident security when mailing cash and other sensitive items. For increased security, these seals are sequentially and individually numbered, so you can quickly and easily check for tampering, even if the seal is replaced. They also use a design intended to prevent the build-up of debris, just follow the easy four step application to secure your pouches. This pack contains 500 white seals. Security seals for mailing cash and confidential documents Designed for use with mailing pouches For tamper evident mailing Simple four step application Printed with unique 6-digit numbering for increased security No special tools required for use 15mm in circumference and 9mm high Colour: White Pack of 500