Chelsea Online

Ampac Tamper Evident Envelopes feature a tear off redemption slip, which provides you with a sequential number, allowing you to track or trace your envelope. The double seal displays a void message if tampered with, helping to keep items secure in transit. This pack contains 20 C5 envelopes. Sequentially numbered envelopes for easy tracking 100% recyclable Displays a visual message once open if tampered with Size: C5 (165x260mm) Averts known methods such as using solvents Supplied in a pack of 20 Opaque